--- title: "Free & Budget Developer Tools for Startups (2026) — Pricing Compared | App Stack Builder" description: "Browse 100+ developer and SaaS tools with free tiers and budget pricing for startups in 2026. Compare databases, hosting, auth, payments, analytics and more by price." source: https://appstackbuilder.com/tools retrieved: 2026-10-16 --- Budget Tools # Budget-Friendly Developer Tools Discover the best SaaS tools and developer resources organized by price. From free tiers to premium solutions — find tools that fit your startup budget. ## Filter by Budget ## Free Developer Tools for Startups 375 tools with free plans across 80 categories — perfect for bootstrapped founders and indie hackers building their first product. ### Free Agent Framework Tools(19 free tools) ![Agno logo](https://www.google.com/s2/favicons?domain=agno.com&sz=128) #### [Agno](https://appstackbuilder.com/tools/agno) Free tier available High-performance Python framework and platform for building agents — fast, model-agnostic, with a hosted control plane. [Pricing & alternatives →](https://appstackbuilder.com/tools/agno)[Visit site ↗](https://www.google.com/search?q=Agno%20signup) ![AutoGen logo](https://www.google.com/s2/favicons?domain=microsoft.github.io&sz=128) #### [AutoGen](https://appstackbuilder.com/tools/autogen) Free tier available Microsoft's open-source framework for multi-agent conversations and orchestration. Free to use. [Pricing & alternatives →](https://appstackbuilder.com/tools/autogen)[Visit site ↗](https://www.google.com/search?q=AutoGen%20signup) ![CrewAI logo](https://www.google.com/s2/favicons?domain=crewai.com&sz=128) #### [CrewAI](https://appstackbuilder.com/tools/crewai) Free tier available Open-source framework for orchestrating role-playing, collaborating multi-agent 'crews' to automate workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/crewai)[Visit site ↗](https://www.google.com/search?q=CrewAI%20signup) ![Dify logo](https://appstackbuilder.com/logos/dify.svg) #### [Dify](https://appstackbuilder.com/tools/dify) Free tier available LLM app platform: visual workflows, RAG pipelines and agents with a hosted option. [Pricing & alternatives →](https://appstackbuilder.com/tools/dify)[Visit site ↗](https://www.google.com/search?q=Dify%20signup) ![DSPy logo](https://appstackbuilder.com/logos/dspy.png) #### [DSPy](https://appstackbuilder.com/tools/dspy) Free tier available Programs prompts instead of writing them — you define signatures and it optimises. [Pricing & alternatives →](https://appstackbuilder.com/tools/dspy)[Visit site ↗](https://www.google.com/search?q=DSPy%20signup) ![Flowise logo](https://appstackbuilder.com/logos/flowise.ico) #### [Flowise](https://appstackbuilder.com/tools/flowise) Free tier available Open-source visual agent builder with a hosted tier for teams who would rather not run it. [Pricing & alternatives →](https://appstackbuilder.com/tools/flowise)[Visit site ↗](https://www.google.com/search?q=Flowise%20signup) ![Google ADK logo](https://www.google.com/s2/favicons?domain=google.github.io&sz=128) #### [Google ADK](https://appstackbuilder.com/tools/google-adk) Free tier available Google's open-source Agent Development Kit — multi-agent systems optimized for Gemini and Vertex AI, model-agnostic via LiteLLM. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-adk)[Visit site ↗](https://www.google.com/search?q=Google%20ADK%20signup) ![Haystack logo](https://appstackbuilder.com/logos/haystack.ico) #### [Haystack](https://appstackbuilder.com/tools/haystack) Free tier available deepset's pipeline framework for RAG and agents, strongest on retrieval. [Pricing & alternatives →](https://appstackbuilder.com/tools/haystack)[Visit site ↗](https://www.google.com/search?q=Haystack%20signup) ![LangChain logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128) #### [LangChain](https://appstackbuilder.com/tools/langchain) Free tier available The most popular open-source framework for building LLM apps and agents, with LangSmith for observability. [Pricing & alternatives →](https://appstackbuilder.com/tools/langchain)[Visit site ↗](https://www.google.com/search?q=LangChain%20signup) ![Langflow logo](https://appstackbuilder.com/logos/langflow.ico) #### [Langflow](https://appstackbuilder.com/tools/langflow) Free tier available Visual builder for LangChain-style flows, open source and self-hostable. [Pricing & alternatives →](https://appstackbuilder.com/tools/langflow)[Visit site ↗](https://www.google.com/search?q=Langflow%20signup) ![LangGraph logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128) #### [LangGraph](https://appstackbuilder.com/tools/langgraph) Free tier available Open-source library for building stateful, multi-step agent workflows as graphs — with a managed platform option. [Pricing & alternatives →](https://appstackbuilder.com/tools/langgraph)[Visit site ↗](https://www.google.com/search?q=LangGraph%20signup) ![Letta logo](https://appstackbuilder.com/logos/letta.png) #### [Letta](https://appstackbuilder.com/tools/letta) Free tier available Agents with persistent memory — the MemGPT research, productised. [Pricing & alternatives →](https://appstackbuilder.com/tools/letta)[Visit site ↗](https://www.google.com/search?q=Letta%20signup) ![LlamaIndex logo](https://www.google.com/s2/favicons?domain=llamaindex.ai&sz=128) #### [LlamaIndex](https://appstackbuilder.com/tools/llamaindex) Free tier available Open-source data framework for RAG and agents — connect LLMs to your data, with LlamaCloud for managed pipelines. [Pricing & alternatives →](https://appstackbuilder.com/tools/llamaindex)[Visit site ↗](https://www.google.com/search?q=LlamaIndex%20signup) ![Mastra logo](https://www.google.com/s2/favicons?domain=mastra.ai&sz=128) #### [Mastra](https://appstackbuilder.com/tools/mastra) Free tier available Open-source TypeScript agent framework from the Gatsby team — agents, workflows, memory, and observability in one modern stack. [Pricing & alternatives →](https://appstackbuilder.com/tools/mastra)[Visit site ↗](https://www.google.com/search?q=Mastra%20signup) ![OpenAI Agents SDK logo](https://www.google.com/s2/favicons?domain=openai.github.io&sz=128) #### [OpenAI Agents SDK](https://appstackbuilder.com/tools/openai-agents-sdk) Free tier available OpenAI's lightweight, production-ready agent SDK — minimal-boilerplate agents, tools, handoffs, and guardrails. [Pricing & alternatives →](https://appstackbuilder.com/tools/openai-agents-sdk)[Visit site ↗](https://www.google.com/search?q=OpenAI%20Agents%20SDK%20signup) ![Pydantic AI logo](https://www.google.com/s2/favicons?domain=ai.pydantic.dev&sz=128) #### [Pydantic AI](https://appstackbuilder.com/tools/pydantic-ai) Free tier available Type-safe Python agent framework from the Pydantic team — structured, validated agent outputs with minimal boilerplate. [Pricing & alternatives →](https://appstackbuilder.com/tools/pydantic-ai)[Visit site ↗](https://www.google.com/search?q=Pydantic%20AI%20signup) ![Semantic Kernel logo](https://appstackbuilder.com/logos/semantic-kernel.svg) #### [Semantic Kernel](https://appstackbuilder.com/tools/semantic-kernel) Free tier available Microsoft's agent SDK for .NET, Python and Java, built for enterprise codebases. [Pricing & alternatives →](https://appstackbuilder.com/tools/semantic-kernel)[Visit site ↗](https://www.google.com/search?q=Semantic%20Kernel%20signup) ![smolagents logo](https://appstackbuilder.com/logos/smolagents.svg) #### [smolagents](https://appstackbuilder.com/tools/smolagents) Free tier available Hugging Face's minimal agent library — agents that write and run Python. [Pricing & alternatives →](https://appstackbuilder.com/tools/smolagents)[Visit site ↗](https://www.google.com/search?q=smolagents%20signup) ![Vercel AI SDK logo](https://www.google.com/s2/favicons?domain=sdk.vercel.ai&sz=128) #### [Vercel AI SDK](https://appstackbuilder.com/tools/vercel-ai-sdk) Free tier available Open-source TypeScript toolkit for building AI apps and agents with streaming, tool calling, and any model. [Pricing & alternatives →](https://appstackbuilder.com/tools/vercel-ai-sdk)[Visit site ↗](https://www.google.com/search?q=Vercel%20AI%20SDK%20signup) ### Free Agent Sandboxes & Code Execution Tools(2 free tools) ![E2B logo](https://www.google.com/s2/favicons?domain=e2b.dev&sz=128) #### [E2B](https://appstackbuilder.com/tools/e2b) Free tier available Open-source cloud sandboxes built for AI agents to run code in. The Hobby tier is free with $100 in credits, and Pro is $150/month plus usage. [Pricing & alternatives →](https://appstackbuilder.com/tools/e2b)[Visit site ↗](https://www.google.com/search?q=E2B%20signup) ![Vercel Sandbox logo](https://www.google.com/s2/favicons?domain=vercel.com&sz=128) #### [Vercel Sandbox](https://appstackbuilder.com/tools/vercel-sandbox) Free tier available Firecracker microVMs on Vercel for running untrusted and AI-generated code. You pay only for active CPU time, not for the time a sandbox spends waiting on the model. [Pricing & alternatives →](https://appstackbuilder.com/tools/vercel-sandbox)[Visit site ↗](https://www.google.com/search?q=Vercel%20Sandbox%20signup) ### Free AI Assistants & Subscriptions Tools(2 free tools) ![DeepSeek Chat logo](https://appstackbuilder.com/logos/deepseek-chat.ico) #### [DeepSeek Chat](https://appstackbuilder.com/tools/deepseek-chat) Free tier available Free chat over DeepSeek’s open-weight reasoning models. [Pricing & alternatives →](https://appstackbuilder.com/tools/deepseek-chat)[Visit site ↗](https://www.google.com/search?q=DeepSeek%20Chat%20signup) ![Qwen Chat logo](https://appstackbuilder.com/logos/qwen-chat.png) #### [Qwen Chat](https://appstackbuilder.com/tools/qwen-chat) Free tier available Alibaba’s free assistant over the Qwen model family, strong on multilingual work. [Pricing & alternatives →](https://appstackbuilder.com/tools/qwen-chat)[Visit site ↗](https://www.google.com/search?q=Qwen%20Chat%20signup) ### Free AI Audio & Music Tools(3 free tools) ![Cartesia logo](https://appstackbuilder.com/logos/cartesia.svg) #### [Cartesia](https://appstackbuilder.com/tools/cartesia) Free tier available Low-latency speech models built for live voice agents. [Pricing & alternatives →](https://appstackbuilder.com/tools/cartesia)[Visit site ↗](https://www.google.com/search?q=Cartesia%20signup) ![Murf AI logo](https://appstackbuilder.com/logos/murf-ai.ico) #### [Murf AI](https://appstackbuilder.com/tools/murf-ai) Free tier available Studio-style AI voiceover: 200+ voices, timing and emphasis controls, and a workspace built for producing narration. [Pricing & alternatives →](https://appstackbuilder.com/tools/murf-ai)[Visit site ↗](https://www.google.com/search?q=Murf%20AI%20signup) ![Speechify logo](https://appstackbuilder.com/logos/speechify.png) #### [Speechify](https://appstackbuilder.com/tools/speechify) Free tier available Reads documents, PDFs and web pages aloud in natural voices. [Pricing & alternatives →](https://appstackbuilder.com/tools/speechify)[Visit site ↗](https://www.google.com/search?q=Speechify%20signup) ### Free AI Code Review Tools(3 free tools) ![CodeRabbit logo](https://appstackbuilder.com/logos/coderabbit.png) #### [CodeRabbit](https://appstackbuilder.com/tools/coderabbit) Free tier available AI pull-request reviewer that leaves line-level comments, one-click fixes and a summary on every PR. [Pricing & alternatives →](https://appstackbuilder.com/tools/coderabbit)[Visit site ↗](https://www.google.com/search?q=CodeRabbit%20signup) ![Greptile logo](https://www.google.com/s2/favicons?domain=greptile.com&sz=128) #### [Greptile](https://appstackbuilder.com/tools/greptile) Free tier available AI code reviewer that indexes your whole codebase, so pull-request comments account for code outside the diff. [Pricing & alternatives →](https://appstackbuilder.com/tools/greptile)[Visit site ↗](https://www.google.com/search?q=Greptile%20signup) ![Qodo logo](https://www.google.com/s2/favicons?domain=qodo.ai&sz=128) #### [Qodo](https://appstackbuilder.com/tools/qodo) Free tier available AI code review and test generation across IDE, pull requests and CLI, from the team behind the open-source PR-Agent. [Pricing & alternatives →](https://appstackbuilder.com/tools/qodo)[Visit site ↗](https://www.google.com/search?q=Qodo%20signup) ### Free AI Evals & Agent Testing Tools(3 free tools) ![DeepEval logo](https://www.google.com/s2/favicons?domain=deepeval.com&sz=128) #### [DeepEval](https://appstackbuilder.com/tools/deepeval) Free tier available Open-source, pytest-style framework for unit testing LLM apps and agents, with 50+ metrics. Confident AI is its hosted platform. [Pricing & alternatives →](https://appstackbuilder.com/tools/deepeval)[Visit site ↗](https://www.google.com/search?q=DeepEval%20signup) ![Promptfoo logo](https://www.google.com/s2/favicons?domain=promptfoo.dev&sz=128) #### [Promptfoo](https://appstackbuilder.com/tools/promptfoo) Free tier available Open-source CLI for testing prompts, agents and RAG apps, with built-in red teaming for jailbreaks, prompt injection and data leaks. [Pricing & alternatives →](https://appstackbuilder.com/tools/promptfoo)[Visit site ↗](https://www.google.com/search?q=Promptfoo%20signup) ![Ragas logo](https://www.google.com/s2/favicons?domain=ragas.io&sz=128) #### [Ragas](https://appstackbuilder.com/tools/ragas) Free tier available Open-source library for evaluating RAG pipelines: faithfulness, context precision and recall, plus synthetic test set generation. [Pricing & alternatives →](https://appstackbuilder.com/tools/ragas)[Visit site ↗](https://www.google.com/search?q=Ragas%20signup) ### Free AI Gateways & LLM Proxies Tools(4 free tools) ![Cloudflare AI Gateway logo](https://www.google.com/s2/favicons?domain=cloudflare.com&sz=128) #### [Cloudflare AI Gateway](https://appstackbuilder.com/tools/cloudflare-ai-gateway) Free tier available Free AI gateway on Cloudflare's network: analytics, caching, rate limiting and fallbacks in front of any model provider. [Pricing & alternatives →](https://appstackbuilder.com/tools/cloudflare-ai-gateway)[Visit site ↗](https://www.google.com/search?q=Cloudflare%20AI%20Gateway%20signup) ![Helicone logo](https://www.google.com/s2/favicons?domain=helicone.ai&sz=128) #### [Helicone](https://appstackbuilder.com/tools/helicone) Free tier available Open-source AI gateway and LLM observability: route requests across providers with caching and fallbacks, and log every call. [Pricing & alternatives →](https://appstackbuilder.com/tools/helicone)[Visit site ↗](https://www.google.com/search?q=Helicone%20signup) ![LiteLLM logo](https://www.google.com/s2/favicons?domain=litellm.ai&sz=128) #### [LiteLLM](https://appstackbuilder.com/tools/litellm) Free tier available Open-source LLM proxy and Python SDK: one OpenAI-style API for 100+ providers, with virtual keys, budgets and fallbacks you host yourself. [Pricing & alternatives →](https://appstackbuilder.com/tools/litellm)[Visit site ↗](https://www.google.com/search?q=LiteLLM%20signup) ![Portkey logo](https://www.google.com/s2/favicons?domain=portkey.ai&sz=128) #### [Portkey](https://appstackbuilder.com/tools/portkey) Free tier available AI gateway with built-in observability: route to any model with fallbacks, caching and guardrails, then trace every request. [Pricing & alternatives →](https://appstackbuilder.com/tools/portkey)[Visit site ↗](https://www.google.com/search?q=Portkey%20signup) ### Free AI Video Generation Tools(3 free tools) C #### [Captions](https://appstackbuilder.com/tools/captions-ai) Free tier available AI video studio for talking-head content: captions, eye contact correction, dubbing, and fully AI-generated presenters. [Pricing & alternatives →](https://appstackbuilder.com/tools/captions-ai)[Visit site ↗](https://www.google.com/search?q=Captions%20signup) O #### [OpusClip](https://appstackbuilder.com/tools/opusclip) Free tier available Turns long videos into short vertical clips automatically, picking the moments most likely to perform and adding captions. [Pricing & alternatives →](https://appstackbuilder.com/tools/opusclip)[Visit site ↗](https://www.google.com/search?q=OpusClip%20signup) ![Synthesia logo](https://appstackbuilder.com/logos/synthesia.png) #### [Synthesia](https://appstackbuilder.com/tools/synthesia) Free tier available AI presenter videos from a script — 240+ avatars, 140 languages, and the tool most L&D teams use instead of filming. [Pricing & alternatives →](https://appstackbuilder.com/tools/synthesia)[Visit site ↗](https://www.google.com/search?q=Synthesia%20signup) ### Free AI Writing & Content Tools(2 free tools) R #### [Rytr](https://appstackbuilder.com/tools/rytr) Free tier available Budget AI writing assistant with 40+ use-case templates and a genuinely cheap unlimited tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/rytr)[Visit site ↗](https://www.google.com/search?q=Rytr%20signup) W #### [Wordtune](https://appstackbuilder.com/tools/wordtune) Free tier available AI rewriting and editing assistant that rephrases your own sentences rather than generating new copy. [Pricing & alternatives →](https://appstackbuilder.com/tools/wordtune)[Visit site ↗](https://www.google.com/search?q=Wordtune%20signup) ### Free Analytics Tools(7 free tools) ![Amplitude logo](https://appstackbuilder.com/amplitude.svg) #### [Amplitude](https://appstackbuilder.com/tools/amplitude) Free tier available Enterprise product analytics platform with strong mobile insights. [Pricing & alternatives →](https://appstackbuilder.com/tools/amplitude)[Visit site ↗](https://amplitude.com) ![Firebase Analytics logo](https://appstackbuilder.com/firebase.svg) #### [Firebase Analytics](https://appstackbuilder.com/tools/firebase-analytics) Free tier available Free mobile-first analytics built into Firebase for app engagement and user behavior tracking. [Pricing & alternatives →](https://appstackbuilder.com/tools/firebase-analytics)[Visit site ↗](https://www.google.com/search?q=Firebase%20Analytics%20signup) ![Google Analytics logo](https://appstackbuilder.com/google-analytics.svg) #### [Google Analytics](https://appstackbuilder.com/tools/google-analytics) Free tier available Free web analytics platform for tracking user behavior and traffic sources. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-analytics)[Visit site ↗](https://analytics.google.com/) ![Matomo logo](https://appstackbuilder.com/logos/matomo.webp) #### [Matomo](https://appstackbuilder.com/tools/matomo) Free tier available Google Analytics alternative with full data ownership. [Pricing & alternatives →](https://appstackbuilder.com/tools/matomo)[Visit site ↗](https://www.google.com/search?q=Matomo%20signup) ![Mixpanel logo](https://appstackbuilder.com/mixpanel.svg) #### [Mixpanel](https://appstackbuilder.com/tools/mixpanel) Free tier available Advanced event-based analytics that tracks user behavior across mobile and web. [Pricing & alternatives →](https://appstackbuilder.com/tools/mixpanel)[Visit site ↗](https://mixpanel.com) ![PostHog logo](https://appstackbuilder.com/posthog.svg) #### [PostHog](https://appstackbuilder.com/tools/posthog) Free tier available Product analytics platform with event tracking, feature flags, and session replay. [Pricing & alternatives →](https://appstackbuilder.com/tools/posthog)[Visit site ↗](https://posthog.com) ![Umami logo](https://appstackbuilder.com/logos/umami.svg) #### [Umami](https://appstackbuilder.com/tools/umami) Free tier available Open-source analytics you can self-host or buy hosted. [Pricing & alternatives →](https://appstackbuilder.com/tools/umami)[Visit site ↗](https://www.google.com/search?q=Umami%20signup) ### Free API Gateways & Key Management Tools(4 free tools) ![Kong Konnect logo](https://www.google.com/s2/favicons?domain=konghq.com&sz=128) #### [Kong Konnect](https://appstackbuilder.com/tools/kong-konnect) Free tier available Hosted control plane for the widely used open-source Kong Gateway, with a developer portal, analytics and AI gateway. [Pricing & alternatives →](https://appstackbuilder.com/tools/kong-konnect)[Visit site ↗](https://www.google.com/search?q=Kong%20Konnect%20signup) ![Tyk logo](https://www.google.com/s2/favicons?domain=tyk.io&sz=128) #### [Tyk](https://appstackbuilder.com/tools/tyk) Free tier available Open-source Go API gateway with REST, GraphQL and gRPC support. Free to self-host; Cloud and self-managed plans by quote. [Pricing & alternatives →](https://appstackbuilder.com/tools/tyk)[Visit site ↗](https://www.google.com/search?q=Tyk%20signup) ![Unkey logo](https://www.google.com/s2/favicons?domain=unkey.com&sz=128) #### [Unkey](https://appstackbuilder.com/tools/unkey) Free tier available Open-source API key management and rate limiting: issue, verify and revoke keys with one API call. Free up to 150K verifications. [Pricing & alternatives →](https://appstackbuilder.com/tools/unkey)[Visit site ↗](https://www.google.com/search?q=Unkey%20signup) ![Zuplo logo](https://www.google.com/s2/favicons?domain=zuplo.com&sz=128) #### [Zuplo](https://appstackbuilder.com/tools/zuplo) Free tier available Edge-deployed API gateway configured in TypeScript, with API keys, rate limiting and a developer portal built in. [Pricing & alternatives →](https://appstackbuilder.com/tools/zuplo)[Visit site ↗](https://www.google.com/search?q=Zuplo%20signup) ### Free API Development Tools(10 free tools) ![Apidog logo](https://www.google.com/s2/favicons?domain=apidog.com&sz=128) #### [Apidog](https://appstackbuilder.com/tools/apidog) Free tier available All-in-one API platform combining design, mocking, testing, and docs — a Postman + Swagger alternative. [Pricing & alternatives →](https://appstackbuilder.com/tools/apidog)[Visit site ↗](https://www.google.com/search?q=Apidog%20signup) ![Bruno logo](https://www.google.com/s2/favicons?domain=usebruno.com&sz=128) #### [Bruno](https://appstackbuilder.com/tools/bruno) Free tier available Open-source, git-native API client — collections stored as files in your repo, offline-first. A fast-growing Postman alternative. [Pricing & alternatives →](https://appstackbuilder.com/tools/bruno)[Visit site ↗](https://www.google.com/search?q=Bruno%20signup) ![Hoppscotch logo](https://www.google.com/s2/favicons?domain=hoppscotch.io&sz=128) #### [Hoppscotch](https://appstackbuilder.com/tools/hoppscotch) Free tier available Lightweight, open-source browser-based API client for REST, GraphQL, and WebSocket — fast and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/hoppscotch)[Visit site ↗](https://www.google.com/search?q=Hoppscotch%20signup) ![HTTPie logo](https://www.google.com/s2/favicons?domain=httpie.io&sz=128) #### [HTTPie](https://appstackbuilder.com/tools/httpie) Free tier available Human-friendly API client — a famous open-source CLI plus a cross-platform desktop app for REST, GraphQL, and HTTP. [Pricing & alternatives →](https://appstackbuilder.com/tools/httpie)[Visit site ↗](https://www.google.com/search?q=HTTPie%20signup) ![Insomnia logo](https://www.google.com/s2/favicons?domain=insomnia.rest&sz=128) #### [Insomnia](https://appstackbuilder.com/tools/insomnia) Free tier available Kong-owned, multi-protocol API client with local, git, or cloud storage per project. [Pricing & alternatives →](https://appstackbuilder.com/tools/insomnia)[Visit site ↗](https://www.google.com/search?q=Insomnia%20signup) ![Postman logo](https://appstackbuilder.com/postman.svg) #### [Postman](https://appstackbuilder.com/tools/postman) Free tier available API platform for building, testing, and documenting APIs. [Pricing & alternatives →](https://appstackbuilder.com/tools/postman)[Visit site ↗](https://www.google.com/search?q=Postman%20signup) ![Scalar logo](https://www.google.com/s2/favicons?domain=scalar.com&sz=128) #### [Scalar](https://appstackbuilder.com/tools/scalar) Free tier available Open-source, OpenAPI-first API platform — a modern REST client plus beautiful auto-generated API references. [Pricing & alternatives →](https://appstackbuilder.com/tools/scalar)[Visit site ↗](https://www.google.com/search?q=Scalar%20signup) ![Stoplight logo](https://www.google.com/s2/favicons?domain=stoplight.io&sz=128) #### [Stoplight](https://appstackbuilder.com/tools/stoplight) Free tier available Design-first OpenAPI platform — visual API designer, style governance, mock servers, and interactive docs. [Pricing & alternatives →](https://appstackbuilder.com/tools/stoplight)[Visit site ↗](https://www.google.com/search?q=Stoplight%20signup) ![Swagger / OpenAPI logo](https://www.google.com/s2/favicons?domain=swagger.io&sz=128) #### [Swagger / OpenAPI](https://appstackbuilder.com/tools/swagger) Free tier available The OpenAPI toolset — design, document, and test APIs. Open-source tools free; SwaggerHub for teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/swagger)[Visit site ↗](https://www.google.com/search?q=Swagger%20%2F%20OpenAPI%20signup) ![Thunder Client logo](https://www.google.com/s2/favicons?domain=thunderclient.com&sz=128) #### [Thunder Client](https://appstackbuilder.com/tools/thunder-client) Free tier available Lightweight REST API client built into VS Code and JetBrains — test APIs without leaving your editor. [Pricing & alternatives →](https://appstackbuilder.com/tools/thunder-client)[Visit site ↗](https://www.google.com/search?q=Thunder%20Client%20signup) ### Free Auth Tools(6 free tools) ![Auth0 logo](https://appstackbuilder.com/auth0.svg) #### [Auth0](https://appstackbuilder.com/tools/auth0) Free tier available Enterprise-grade authentication and authorization platform with advanced security, SSO, and identity management. [Pricing & alternatives →](https://appstackbuilder.com/tools/auth0)[Visit site ↗](https://auth0.com/signup) ![Better Auth logo](https://www.google.com/s2/favicons?domain=better-auth.com&sz=128) #### [Better Auth](https://appstackbuilder.com/tools/better-auth) Free tier available Open-source, TypeScript-first authentication framework — comprehensive, self-hosted, and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/better-auth)[Visit site ↗](https://www.google.com/search?q=Better%20Auth%20signup) ![Clerk logo](https://appstackbuilder.com/clerk.svg) #### [Clerk](https://appstackbuilder.com/tools/clerk) Free tier available Complete authentication and user management platform for modern web applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/clerk)[Visit site ↗](https://clerk.com/sign-up) ![Firebase Authentication logo](https://appstackbuilder.com/firebase.svg) #### [Firebase Authentication](https://appstackbuilder.com/tools/firebase-auth) Free tier available Authentication service by Google Firebase supporting email/password, phone, social logins, and anonymous auth. [Pricing & alternatives →](https://appstackbuilder.com/tools/firebase-auth)[Visit site ↗](https://www.google.com/search?q=Firebase%20Authentication%20signup) ![NextAuth.js logo](https://appstackbuilder.com/nextauth.png) #### [NextAuth.js](https://appstackbuilder.com/tools/nextauth) Free tier available Open-source authentication solution for Next.js with built-in providers, sessions, and security best practices. [Pricing & alternatives →](https://appstackbuilder.com/tools/nextauth)[Visit site ↗](https://next-auth.js.org) ![SuperTokens logo](https://appstackbuilder.com/supertokens.png) #### [SuperTokens](https://appstackbuilder.com/tools/supertokens) Free tier available Open-source authentication solution with flexible cloud and self-hosted options, priced per MAU. [Pricing & alternatives →](https://appstackbuilder.com/tools/supertokens)[Visit site ↗](https://www.google.com/search?q=SuperTokens%20signup) ### Free Automation & Workflows Tools(7 free tools) ![Activepieces logo](https://www.google.com/s2/favicons?domain=activepieces.com&sz=128) #### [Activepieces](https://appstackbuilder.com/tools/activepieces) Free tier available Open-source, self-hostable workflow automation with an MIT-licensed core and native AI steps. [Pricing & alternatives →](https://appstackbuilder.com/tools/activepieces)[Visit site ↗](https://www.google.com/search?q=Activepieces%20signup) B #### [Bardeen](https://appstackbuilder.com/tools/bardeen) Free tier available Browser-native automation that scrapes pages and moves data between the web apps already open in your tabs. [Pricing & alternatives →](https://appstackbuilder.com/tools/bardeen)[Visit site ↗](https://www.google.com/search?q=Bardeen%20signup) L #### [Latenode](https://appstackbuilder.com/tools/latenode) Free tier available Low-code automation that lets you drop into JavaScript mid-workflow, billed by CPU seconds rather than per task. [Pricing & alternatives →](https://appstackbuilder.com/tools/latenode)[Visit site ↗](https://www.google.com/search?q=Latenode%20signup) ![Make logo](https://www.google.com/s2/favicons?domain=make.com&sz=128) #### [Make](https://appstackbuilder.com/tools/make) Free tier available Visual automation platform (formerly Integromat) with powerful branching and a generous operations-based free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/make)[Visit site ↗](https://www.google.com/search?q=Make%20signup) ![n8n logo](https://www.google.com/s2/favicons?domain=n8n.io&sz=128) #### [n8n](https://appstackbuilder.com/tools/n8n) Free tier available Open-source, self-hostable workflow automation with native AI/agent nodes — fair-code and developer-friendly. [Pricing & alternatives →](https://appstackbuilder.com/tools/n8n)[Visit site ↗](https://www.google.com/search?q=n8n%20signup) ![Pipedream logo](https://www.google.com/s2/favicons?domain=pipedream.com&sz=128) #### [Pipedream](https://appstackbuilder.com/tools/pipedream) Free tier available Developer-first workflow automation — connect 2,500+ APIs with code-level control and a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/pipedream)[Visit site ↗](https://www.google.com/search?q=Pipedream%20signup) ![Zapier logo](https://www.google.com/s2/favicons?domain=zapier.com&sz=128) #### [Zapier](https://appstackbuilder.com/tools/zapier) Free tier available The most popular no-code automation tool — connect 7,000+ apps with 'Zaps' to automate workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/zapier)[Visit site ↗](https://www.google.com/search?q=Zapier%20signup) ### Free Backend Framework Tools(8 free tools) ![Django logo](https://www.google.com/s2/favicons?domain=djangoproject.com&sz=128) #### [Django](https://appstackbuilder.com/tools/django) Free tier available Batteries-included Python web framework — ORM, admin, and auth out of the box. Great for data-heavy and AI backends. [Pricing & alternatives →](https://appstackbuilder.com/tools/django)[Visit site ↗](https://www.google.com/search?q=Django%20signup) ![Express logo](https://www.google.com/s2/favicons?domain=expressjs.com&sz=128) #### [Express](https://appstackbuilder.com/tools/express) Free tier available The minimal, unopinionated Node.js web framework — still the most widely used backend in JS. [Pricing & alternatives →](https://appstackbuilder.com/tools/express)[Visit site ↗](https://www.google.com/search?q=Express%20signup) ![Go (Golang) logo](https://appstackbuilder.com/golang.svg) #### [Go (Golang)](https://appstackbuilder.com/tools/golang) Free tier available Google's statically typed, compiled language for high-performance, low-latency backend services and infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/golang)[Visit site ↗](https://www.google.com/search?q=Go%20%28Golang%29%20signup) ![Hono logo](https://www.google.com/s2/favicons?domain=hono.dev&sz=128) #### [Hono](https://appstackbuilder.com/tools/hono) Free tier available Ultrafast, edge-first web framework for any JS runtime (Cloudflare, Bun, Deno, Node) — tiny and standards-based. [Pricing & alternatives →](https://appstackbuilder.com/tools/hono)[Visit site ↗](https://www.google.com/search?q=Hono%20signup) ![Java / Spring Boot logo](https://appstackbuilder.com/spring.svg) #### [Java / Spring Boot](https://appstackbuilder.com/tools/java-spring) Free tier available Industry-standard Java framework for building enterprise-grade, high-throughput transactional backend services. [Pricing & alternatives →](https://appstackbuilder.com/tools/java-spring)[Visit site ↗](https://www.google.com/search?q=Java%20%2F%20Spring%20Boot%20signup) ![Laravel logo](https://www.google.com/s2/favicons?domain=laravel.com&sz=128) #### [Laravel](https://appstackbuilder.com/tools/laravel) Free tier available The most popular PHP framework — elegant syntax, huge ecosystem, and everything needed for complex business apps. [Pricing & alternatives →](https://appstackbuilder.com/tools/laravel)[Visit site ↗](https://www.google.com/search?q=Laravel%20signup) ![NestJS logo](https://www.google.com/s2/favicons?domain=nestjs.com&sz=128) #### [NestJS](https://appstackbuilder.com/tools/nestjs) Free tier available Progressive Node.js framework for building scalable, structured server-side apps with TypeScript. [Pricing & alternatives →](https://appstackbuilder.com/tools/nestjs)[Visit site ↗](https://www.google.com/search?q=NestJS%20signup) ![Python / FastAPI logo](https://appstackbuilder.com/fastapi.svg) #### [Python / FastAPI](https://appstackbuilder.com/tools/fastapi) Free tier available Modern, high-performance Python web framework for building APIs — especially popular for AI/ML-powered backends. [Pricing & alternatives →](https://appstackbuilder.com/tools/fastapi)[Visit site ↗](https://www.google.com/search?q=Python%20%2F%20FastAPI%20signup) ### Free Background Jobs & Workflows Tools(10 free tools) ![BullMQ logo](https://www.google.com/s2/favicons?domain=bullmq.io&sz=128) #### [BullMQ](https://appstackbuilder.com/tools/bullmq) Free tier available Fast, Redis-based message queue and job processor for Node.js — the modern successor to Bull. [Pricing & alternatives →](https://appstackbuilder.com/tools/bullmq)[Visit site ↗](https://www.google.com/search?q=BullMQ%20signup) ![Celery logo](https://www.google.com/s2/favicons?domain=celeryq.dev&sz=128) #### [Celery](https://appstackbuilder.com/tools/celery) Free tier available The classic distributed task queue for Python — async jobs and scheduled tasks at scale. [Pricing & alternatives →](https://appstackbuilder.com/tools/celery)[Visit site ↗](https://www.google.com/search?q=Celery%20signup) ![Graphile Worker logo](https://www.google.com/s2/favicons?domain=graphile.org&sz=128) #### [Graphile Worker](https://appstackbuilder.com/tools/graphile-worker) Free tier available High-performance job queue for Node.js that runs entirely on your Postgres — no extra infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/graphile-worker)[Visit site ↗](https://www.google.com/search?q=Graphile%20Worker%20signup) ![Hatchet logo](https://www.google.com/s2/favicons?domain=hatchet.run&sz=128) #### [Hatchet](https://appstackbuilder.com/tools/hatchet) Free tier available Postgres-backed orchestration engine for background tasks, AI agents, and durable workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/hatchet)[Visit site ↗](https://www.google.com/search?q=Hatchet%20signup) ![Inngest logo](https://www.google.com/s2/favicons?domain=inngest.com&sz=128) #### [Inngest](https://appstackbuilder.com/tools/inngest) Free tier available Durable, event-driven functions and workflows for TypeScript & Python — no queues or workers to manage. [Pricing & alternatives →](https://appstackbuilder.com/tools/inngest)[Visit site ↗](https://www.google.com/search?q=Inngest%20signup) ![River logo](https://www.google.com/s2/favicons?domain=riverqueue.com&sz=128) #### [River](https://appstackbuilder.com/tools/river) Free tier available Fast, robust background job queue for Go, built on Postgres with transactional enqueueing. [Pricing & alternatives →](https://appstackbuilder.com/tools/river)[Visit site ↗](https://www.google.com/search?q=River%20signup) ![Sidekiq logo](https://www.google.com/s2/favicons?domain=sidekiq.org&sz=128) #### [Sidekiq](https://appstackbuilder.com/tools/sidekiq) Free tier available Simple, efficient background jobs for Ruby — the standard for Rails apps, backed by Redis. [Pricing & alternatives →](https://appstackbuilder.com/tools/sidekiq)[Visit site ↗](https://www.google.com/search?q=Sidekiq%20signup) ![Temporal logo](https://www.google.com/s2/favicons?domain=temporal.io&sz=128) #### [Temporal](https://appstackbuilder.com/tools/temporal) Free tier available Durable execution platform for mission-critical workflows — code that survives crashes, retries, and restarts. [Pricing & alternatives →](https://appstackbuilder.com/tools/temporal)[Visit site ↗](https://www.google.com/search?q=Temporal%20signup) ![Trigger.dev logo](https://www.google.com/s2/favicons?domain=trigger.dev&sz=128) #### [Trigger.dev](https://appstackbuilder.com/tools/trigger-dev) Free tier available Open-source background jobs and AI workflows for TypeScript — long-running tasks with no timeouts. [Pricing & alternatives →](https://appstackbuilder.com/tools/trigger-dev)[Visit site ↗](https://www.google.com/search?q=Trigger.dev%20signup) ![Upstash QStash logo](https://www.google.com/s2/favicons?domain=upstash.com&sz=128) #### [Upstash QStash](https://appstackbuilder.com/tools/qstash) Free tier available Serverless message queue and HTTP-based scheduler — background jobs and cron without running any infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/qstash)[Visit site ↗](https://www.google.com/search?q=Upstash%20QStash%20signup) ### Free Browser Infrastructure for AI Agents Tools(3 free tools) ![Browser Use logo](https://www.google.com/s2/favicons?domain=browser-use.com&sz=128) #### [Browser Use](https://appstackbuilder.com/tools/browser-use) Free tier available Open-source AI browser agent: give it a goal in plain English and it decides the clicks. Self-host free or use Browser Use Cloud. [Pricing & alternatives →](https://appstackbuilder.com/tools/browser-use)[Visit site ↗](https://www.google.com/search?q=Browser%20Use%20signup) B #### [Browserless](https://appstackbuilder.com/tools/browserless) Free tier available Hosted headless Chrome you connect Puppeteer or Playwright to over WebSocket, with stealth, proxies and CAPTCHA solving built in. [Pricing & alternatives →](https://appstackbuilder.com/tools/browserless)[Visit site ↗](https://www.google.com/search?q=Browserless%20signup) ![Steel logo](https://www.google.com/s2/favicons?domain=steel.dev&sz=128) #### [Steel](https://appstackbuilder.com/tools/steel) Free tier available Open-source browser API for AI agents with 100 free browser hours a month, then usage-based pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/steel)[Visit site ↗](https://www.google.com/search?q=Steel%20signup) ### Free Caching & Serverless Redis Tools(3 free tools) ![Dragonfly logo](https://www.google.com/s2/favicons?domain=dragonflydb.io&sz=128) #### [Dragonfly](https://appstackbuilder.com/tools/dragonfly) Free tier available A multi-threaded, Redis-compatible in-memory store that runs far more ops per node. Free to self-host; Cloud from $36/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/dragonfly)[Visit site ↗](https://www.google.com/search?q=Dragonfly%20signup) ![Redis Cloud logo](https://www.google.com/s2/favicons?domain=redis.io&sz=128) #### [Redis Cloud](https://appstackbuilder.com/tools/redis-cloud) Free tier available The managed service from Redis itself: a 30 MB free database, Essentials from $5/month and Pro with active-active replication. [Pricing & alternatives →](https://appstackbuilder.com/tools/redis-cloud)[Visit site ↗](https://www.google.com/search?q=Redis%20Cloud%20signup) ![Upstash Redis logo](https://www.google.com/s2/favicons?domain=upstash.com&sz=128) #### [Upstash Redis](https://appstackbuilder.com/tools/upstash-redis) Free tier available Serverless Redis billed per command, with an HTTP API that works from edge functions. Free up to 500K commands a month. [Pricing & alternatives →](https://appstackbuilder.com/tools/upstash-redis)[Visit site ↗](https://www.google.com/search?q=Upstash%20Redis%20signup) ### Free CDN & Edge Caching Tools(3 free tools) ![Bunny CDN logo](https://www.google.com/s2/favicons?domain=bunny.net&sz=128) #### [Bunny CDN](https://appstackbuilder.com/tools/bunny-cdn) Free tier available Pay-as-you-go CDN from $0.01/GB in Europe and North America, with a $1 monthly minimum and no request fees. [Pricing & alternatives →](https://appstackbuilder.com/tools/bunny-cdn)[Visit site ↗](https://www.google.com/search?q=Bunny%20CDN%20signup) ![Cloudflare CDN logo](https://www.google.com/s2/favicons?domain=cloudflare.com&sz=128) #### [Cloudflare CDN](https://appstackbuilder.com/tools/cloudflare-cdn) Free tier available The default CDN for most of the web: a free plan with unmetered bandwidth, plus DNS, DDoS protection and a WAF on the same network. [Pricing & alternatives →](https://appstackbuilder.com/tools/cloudflare-cdn)[Visit site ↗](https://www.google.com/search?q=Cloudflare%20CDN%20signup) ![Fastly logo](https://www.google.com/s2/favicons?domain=fastly.com&sz=128) #### [Fastly](https://appstackbuilder.com/tools/fastly) Free tier available Programmable edge cloud with instant cache purges and Compute at the edge, used by large publishers and commerce sites. [Pricing & alternatives →](https://appstackbuilder.com/tools/fastly)[Visit site ↗](https://www.google.com/search?q=Fastly%20signup) ### Free Changelog & Product Updates Tools(2 free tools) ![Beamer logo](https://www.google.com/s2/favicons?domain=getbeamer.com&sz=128) #### [Beamer](https://appstackbuilder.com/tools/beamer) Free tier available Changelog and in-app announcement widget with segmentation, push notifications and engagement analytics. Free up to 1,000 MAU. [Pricing & alternatives →](https://appstackbuilder.com/tools/beamer)[Visit site ↗](https://www.google.com/search?q=Beamer%20signup) ![Headway logo](https://www.google.com/s2/favicons?domain=headwayapp.co&sz=128) #### [Headway](https://appstackbuilder.com/tools/headway) Free tier available Simple changelog page and in-app widget with a free plan for unlimited changelogs. Pro is $29/month flat. [Pricing & alternatives →](https://appstackbuilder.com/tools/headway)[Visit site ↗](https://www.google.com/search?q=Headway%20signup) ### Free CI/CD Tools(6 free tools) ![Argo CD logo](https://appstackbuilder.com/logos/argo-cd.png) #### [Argo CD](https://appstackbuilder.com/tools/argo-cd) Free tier available GitOps continuous delivery for Kubernetes: the cluster reconciles itself to whatever the manifests in Git say. [Pricing & alternatives →](https://appstackbuilder.com/tools/argo-cd)[Visit site ↗](https://www.google.com/search?q=Argo%20CD%20signup) ![Buildkite logo](https://www.google.com/s2/favicons?domain=buildkite.com&sz=128) #### [Buildkite](https://appstackbuilder.com/tools/buildkite) Free tier available Scalable CI/CD that runs pipelines on your own infrastructure — fast, secure, with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/buildkite)[Visit site ↗](https://www.google.com/search?q=Buildkite%20signup) ![CircleCI logo](https://appstackbuilder.com/circleci.svg) #### [CircleCI](https://appstackbuilder.com/tools/circleci) Free tier available Cloud-native CI/CD platform for fast, reliable software delivery. [Pricing & alternatives →](https://appstackbuilder.com/tools/circleci)[Visit site ↗](https://www.google.com/search?q=CircleCI%20signup) ![GitHub Actions logo](https://appstackbuilder.com/github.svg) #### [GitHub Actions](https://appstackbuilder.com/tools/github-actions) Free tier available CI/CD and automation platform built into GitHub repositories. [Pricing & alternatives →](https://appstackbuilder.com/tools/github-actions)[Visit site ↗](https://www.google.com/search?q=GitHub%20Actions%20signup) ![GitLab CI/CD logo](https://www.google.com/s2/favicons?domain=gitlab.com&sz=128) #### [GitLab CI/CD](https://appstackbuilder.com/tools/gitlab-ci) Free tier available Built-in CI/CD inside GitLab — pipelines as code with a generous free tier of compute minutes. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitlab-ci)[Visit site ↗](https://www.google.com/search?q=GitLab%20CI%2FCD%20signup) ![Jenkins logo](https://www.google.com/s2/favicons?domain=jenkins.io&sz=128) #### [Jenkins](https://appstackbuilder.com/tools/jenkins) Free tier available The veteran open-source automation server — endlessly extensible CI/CD with 1,800+ plugins. Free to self-host. [Pricing & alternatives →](https://appstackbuilder.com/tools/jenkins)[Visit site ↗](https://www.google.com/search?q=Jenkins%20signup) ### Free Content Management Tools(6 free tools) ![Contentful logo](https://www.google.com/s2/favicons?domain=contentful.com&sz=128) #### [Contentful](https://appstackbuilder.com/tools/contentful) Free tier available Enterprise headless CMS for managing content across multiple channels. [Pricing & alternatives →](https://appstackbuilder.com/tools/contentful)[Visit site ↗](https://www.google.com/search?q=Contentful%20signup) ![Directus logo](https://www.google.com/s2/favicons?domain=directus.io&sz=128) #### [Directus](https://appstackbuilder.com/tools/directus) Free tier available Open-source data platform that wraps any SQL database with instant REST/GraphQL APIs and an admin app. [Pricing & alternatives →](https://appstackbuilder.com/tools/directus)[Visit site ↗](https://www.google.com/search?q=Directus%20signup) ![Payload CMS logo](https://www.google.com/s2/favicons?domain=payloadcms.com&sz=128) #### [Payload CMS](https://appstackbuilder.com/tools/payload) Free tier available TypeScript-native, open-source headless CMS that installs directly into your Next.js app — the CMS that made the biggest splash in 2026. [Pricing & alternatives →](https://appstackbuilder.com/tools/payload)[Visit site ↗](https://www.google.com/search?q=Payload%20CMS%20signup) ![Sanity logo](https://www.google.com/s2/favicons?domain=sanity.io&sz=128) #### [Sanity](https://appstackbuilder.com/tools/sanity) Free tier available Headless CMS with real-time collaboration and customizable content studio. [Pricing & alternatives →](https://appstackbuilder.com/tools/sanity)[Visit site ↗](https://www.google.com/search?q=Sanity%20signup) ![Storyblok logo](https://www.google.com/s2/favicons?domain=storyblok.com&sz=128) #### [Storyblok](https://appstackbuilder.com/tools/storyblok) Free tier available Headless CMS with the best visual editor on the market — non-technical teams edit pages in a live preview. [Pricing & alternatives →](https://appstackbuilder.com/tools/storyblok)[Visit site ↗](https://www.google.com/search?q=Storyblok%20signup) ![Strapi logo](https://www.google.com/s2/favicons?domain=strapi.io&sz=128) #### [Strapi](https://appstackbuilder.com/tools/strapi) Free tier available Open-source headless CMS that's 100% JavaScript and fully customizable. [Pricing & alternatives →](https://appstackbuilder.com/tools/strapi)[Visit site ↗](https://www.google.com/search?q=Strapi%20signup) ### Free AI Coding Assistant Tools(7 free tools) ![Amazon Q Developer logo](https://appstackbuilder.com/logos/amazon-q-developer.ico) #### [Amazon Q Developer](https://appstackbuilder.com/tools/amazon-q-developer) Free tier available AWS coding assistant with agentic chat, CLI and Java modernisation. [Pricing & alternatives →](https://appstackbuilder.com/tools/amazon-q-developer)[Visit site ↗](https://www.google.com/search?q=Amazon%20Q%20Developer%20signup) ![Cursor logo](https://appstackbuilder.com/cursor.svg) #### [Cursor](https://appstackbuilder.com/tools/cursor) Free tier available AI-powered code editor with built-in agents, deep model support, and fast local development workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/cursor)[Visit site ↗](https://cursor.sh/) ![Gemini Code Assist logo](https://appstackbuilder.com/gemini.svg) #### [Gemini Code Assist](https://appstackbuilder.com/tools/gemini-code-assist) Free tier available AI-powered coding assistant by Google that provides code completion, explanations, refactoring, and chat inside IDEs. [Pricing & alternatives →](https://appstackbuilder.com/tools/gemini-code-assist)[Visit site ↗](https://www.google.com/search?q=Gemini%20Code%20Assist%20signup) ![GitHub Copilot logo](https://appstackbuilder.com/github-copilot.svg) #### [GitHub Copilot](https://appstackbuilder.com/tools/github-copilot) Free tier available AI-powered coding assistant that helps you write, review, and understand code faster directly in your IDE. [Pricing & alternatives →](https://appstackbuilder.com/tools/github-copilot)[Visit site ↗](https://github.com/features/copilot) ![Google Antigravity logo](https://appstackbuilder.com/google-antigravity.svg) #### [Google Antigravity](https://appstackbuilder.com/tools/google-antigravity) Free tier available AI-powered agent-first IDE from Google with autonomous AI agents, generous free tier, and multi-model support. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-antigravity)[Visit site ↗](https://www.google.com/search?q=Google%20Antigravity%20signup) ![OpenAI Codex logo](https://appstackbuilder.com/openai.svg) #### [OpenAI Codex](https://appstackbuilder.com/tools/openai-codex) Free tier available OpenAI’s agentic coding tool — a terminal CLI, IDE extension, and cloud agent powered by GPT-5-Codex models. [Pricing & alternatives →](https://appstackbuilder.com/tools/openai-codex)[Visit site ↗](https://www.google.com/search?q=OpenAI%20Codex%20signup) ![Windsurf logo](https://appstackbuilder.com/windsurf.svg) #### [Windsurf](https://appstackbuilder.com/tools/windsurf) Free tier available AI-powered coding assistant with fast context, multi-model support, and strong collaboration features for individuals and teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/windsurf)[Visit site ↗](https://codeium.com/windsurf) ### Free Communication Tools(8 free tools) ![Discord logo](https://appstackbuilder.com/discord.svg) #### [Discord](https://appstackbuilder.com/tools/discord) Free tier available Voice, video, and text communication platform popular with developer communities. [Pricing & alternatives →](https://appstackbuilder.com/tools/discord)[Visit site ↗](https://www.google.com/search?q=Discord%20signup) ![Google Meet logo](https://www.google.com/s2/favicons?domain=meet.google.com&sz=128) #### [Google Meet](https://appstackbuilder.com/tools/google-meet) Free tier available Browser-based video meetings integrated with Google Workspace — no install, free to start. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-meet)[Visit site ↗](https://www.google.com/search?q=Google%20Meet%20signup) ![Mattermost logo](https://www.google.com/s2/favicons?domain=mattermost.com&sz=128) #### [Mattermost](https://appstackbuilder.com/tools/mattermost) Free tier available Open-source, self-hostable team messaging — a Slack alternative for security- and privacy-conscious teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/mattermost)[Visit site ↗](https://www.google.com/search?q=Mattermost%20signup) ![Microsoft Teams logo](https://www.google.com/s2/favicons?domain=microsoft.com&sz=128) #### [Microsoft Teams](https://appstackbuilder.com/tools/microsoft-teams) Free tier available Team chat, video meetings, and collaboration deeply integrated with Microsoft 365\. Free tier available. [Pricing & alternatives →](https://appstackbuilder.com/tools/microsoft-teams)[Visit site ↗](https://www.google.com/search?q=Microsoft%20Teams%20signup) ![Rocket.Chat logo](https://www.google.com/s2/favicons?domain=rocket.chat&sz=128) #### [Rocket.Chat](https://appstackbuilder.com/tools/rocket-chat) Free tier available Open-source, self-hostable team communication platform for security- and data-sovereignty-focused teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/rocket-chat)[Visit site ↗](https://www.google.com/search?q=Rocket.Chat%20signup) ![Slack logo](https://appstackbuilder.com/slack.svg) #### [Slack](https://appstackbuilder.com/tools/slack) Free tier available Business messaging platform for team communication and collaboration. [Pricing & alternatives →](https://appstackbuilder.com/tools/slack)[Visit site ↗](https://www.google.com/search?q=Slack%20signup) ![Zoom logo](https://www.google.com/s2/favicons?domain=zoom.us&sz=128) #### [Zoom](https://appstackbuilder.com/tools/zoom) Free tier available The ubiquitous video meetings platform — reliable HD video, webinars, and a free tier (40-min meetings). [Pricing & alternatives →](https://appstackbuilder.com/tools/zoom)[Visit site ↗](https://www.google.com/search?q=Zoom%20signup) ![Zulip logo](https://www.google.com/s2/favicons?domain=zulip.com&sz=128) #### [Zulip](https://appstackbuilder.com/tools/zulip) Free tier available Open-source team chat with a unique topic-threading model — great for async, focused discussions. [Pricing & alternatives →](https://appstackbuilder.com/tools/zulip)[Visit site ↗](https://www.google.com/search?q=Zulip%20signup) ### Free Data & ETL Tools(7 free tools) ![Airbyte logo](https://appstackbuilder.com/logos/airbyte.png) #### [Airbyte](https://appstackbuilder.com/tools/airbyte) Free tier available Open-source ELT with 600+ connectors — self-host it for free, or buy the managed cloud when you would rather not. [Pricing & alternatives →](https://appstackbuilder.com/tools/airbyte)[Visit site ↗](https://www.google.com/search?q=Airbyte%20signup) ![dbt logo](https://appstackbuilder.com/logos/dbt.ico) #### [dbt](https://appstackbuilder.com/tools/dbt) Free tier available SQL transformations with version control, tests and lineage — the layer that turns raw warehouse tables into models you trust. [Pricing & alternatives →](https://appstackbuilder.com/tools/dbt)[Visit site ↗](https://www.google.com/search?q=dbt%20signup) ![Estuary Flow logo](https://appstackbuilder.com/logos/estuary.ico) #### [Estuary Flow](https://appstackbuilder.com/tools/estuary) Free tier available Streaming CDC pipelines with sub-second latency, priced per GB moved plus a flat fee per connector. [Pricing & alternatives →](https://appstackbuilder.com/tools/estuary)[Visit site ↗](https://www.google.com/search?q=Estuary%20Flow%20signup) ![Fivetran logo](https://appstackbuilder.com/logos/fivetran.png) #### [Fivetran](https://appstackbuilder.com/tools/fivetran) Free tier available Managed ELT connectors that keep a warehouse in sync with every SaaS tool and database you run, priced per row changed. [Pricing & alternatives →](https://appstackbuilder.com/tools/fivetran)[Visit site ↗](https://www.google.com/search?q=Fivetran%20signup) ![Hightouch logo](https://appstackbuilder.com/logos/hightouch.ico) #### [Hightouch](https://appstackbuilder.com/tools/hightouch) Free tier available Reverse ETL: sync the models in your warehouse back out to Salesforce, HubSpot, ad platforms and support tools. [Pricing & alternatives →](https://appstackbuilder.com/tools/hightouch)[Visit site ↗](https://www.google.com/search?q=Hightouch%20signup) ![Meltano logo](https://appstackbuilder.com/logos/meltano.png) #### [Meltano](https://appstackbuilder.com/tools/meltano) Free tier available Open-source, CLI-first ELT built on the Singer taps and targets — your pipeline as code, running wherever you already deploy. [Pricing & alternatives →](https://appstackbuilder.com/tools/meltano)[Visit site ↗](https://www.google.com/search?q=Meltano%20signup) ![RudderStack logo](https://appstackbuilder.com/logos/rudderstack.ico) #### [RudderStack](https://appstackbuilder.com/tools/rudderstack) Free tier available Warehouse-first customer data pipeline — collect events once, land them in your own warehouse, then fan out to 200+ destinations. [Pricing & alternatives →](https://appstackbuilder.com/tools/rudderstack)[Visit site ↗](https://www.google.com/search?q=RudderStack%20signup) ### Free Database Tools(6 free tools) ![Appwrite logo](https://appstackbuilder.com/appwrite.svg) #### [Appwrite](https://appstackbuilder.com/tools/appwrite) Free tier available Open-source backend-as-a-service providing databases, authentication, storage, serverless functions, and real-time APIs. [Pricing & alternatives →](https://appstackbuilder.com/tools/appwrite)[Visit site ↗](https://appwrite.io) ![MongoDB Atlas logo](https://appstackbuilder.com/mongodb.svg) #### [MongoDB Atlas](https://appstackbuilder.com/tools/mongodb-atlas) Free tier available Fully managed cloud NoSQL database with flexible scaling, global distribution, and strong developer tooling. [Pricing & alternatives →](https://appstackbuilder.com/tools/mongodb-atlas)[Visit site ↗](https://www.google.com/search?q=MongoDB%20Atlas%20signup) ![Neon logo](https://appstackbuilder.com/neon.svg) #### [Neon](https://appstackbuilder.com/tools/neon) Free tier available Serverless PostgreSQL with autoscaling, branching, and usage-based pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/neon)[Visit site ↗](https://neon.tech) ![Redis logo](https://appstackbuilder.com/redis.svg) #### [Redis](https://appstackbuilder.com/tools/redis) Free tier available In-memory data structure store used as a cache, session store, real-time queue, and message broker. [Pricing & alternatives →](https://appstackbuilder.com/tools/redis)[Visit site ↗](https://www.google.com/search?q=Redis%20signup) ![Supabase logo](https://appstackbuilder.com/supabase.svg) #### [Supabase](https://appstackbuilder.com/tools/supabase) Free tier available Open-source Firebase alternative built on PostgreSQL with auth, storage, and real-time features. [Pricing & alternatives →](https://appstackbuilder.com/tools/supabase)[Visit site ↗](https://supabase.com/dashboard/sign-up) ![Turso logo](https://www.google.com/s2/favicons?domain=turso.tech&sz=128) #### [Turso](https://appstackbuilder.com/tools/turso) Free tier available Edge SQLite (libSQL) database built for the database-per-tenant pattern, with a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/turso)[Visit site ↗](https://www.google.com/search?q=Turso%20signup) ### Free Design & Creative Tools(2 free tools) ![Affinity logo](https://appstackbuilder.com/logos/affinity.png) #### [Affinity](https://appstackbuilder.com/tools/affinity) Free tier available Professional vector, photo and layout tools in one app — free since Canva took it on. [Pricing & alternatives →](https://appstackbuilder.com/tools/affinity)[Visit site ↗](https://www.google.com/search?q=Affinity%20signup) ![Photopea logo](https://appstackbuilder.com/logos/photopea.png) #### [Photopea](https://appstackbuilder.com/tools/photopea) Free tier available Photoshop in a browser tab, ad-supported and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/photopea)[Visit site ↗](https://www.google.com/search?q=Photopea%20signup) ### Free Docs & Developer Portals Tools(5 free tools) ![Docusaurus logo](https://appstackbuilder.com/logos/docusaurus.ico) #### [Docusaurus](https://appstackbuilder.com/tools/docusaurus) Free tier available Meta's open-source React docs generator — free forever, versioned, i18n-ready, and hosted anywhere static files go. [Pricing & alternatives →](https://appstackbuilder.com/tools/docusaurus)[Visit site ↗](https://www.google.com/search?q=Docusaurus%20signup) ![GitBook logo](https://appstackbuilder.com/logos/gitbook.png) #### [GitBook](https://appstackbuilder.com/tools/gitbook) Free tier available Block-based docs with GitHub sync — a WYSIWYG editor non-engineers can use that still round-trips to Markdown in your repo. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitbook)[Visit site ↗](https://www.google.com/search?q=GitBook%20signup) ![Mintlify logo](https://appstackbuilder.com/logos/mintlify.ico) #### [Mintlify](https://appstackbuilder.com/tools/mintlify) Free tier available Modern docs platform for API-first products: MDX in your repo, an API playground, AI search and an MCP server generated for you. [Pricing & alternatives →](https://appstackbuilder.com/tools/mintlify)[Visit site ↗](https://www.google.com/search?q=Mintlify%20signup) R #### [Read the Docs](https://appstackbuilder.com/tools/readthedocs) Free tier available The long-standing host for Sphinx and MkDocs documentation — builds from your repo on every commit, with versioning and full-text search built in. [Pricing & alternatives →](https://appstackbuilder.com/tools/readthedocs)[Visit site ↗](https://www.google.com/search?q=Read%20the%20Docs%20signup) ![ReadMe logo](https://appstackbuilder.com/logos/readme.ico) #### [ReadMe](https://appstackbuilder.com/tools/readme) Free tier available API documentation hubs with personalised keys, real request logs and metrics on which endpoints developers actually call. [Pricing & alternatives →](https://appstackbuilder.com/tools/readme)[Visit site ↗](https://www.google.com/search?q=ReadMe%20signup) ### Free PDF & Documents Tools(5 free tools) ![iLovePDFs logo](https://appstackbuilder.com/ilovepdf.svg) #### [iLovePDFs](https://appstackbuilder.com/tools/ilovepdf) Free tier available Free online PDF toolkit — convert, edit, compress, merge, split, and secure PDF files instantly, no software needed. [Pricing & alternatives →](https://appstackbuilder.com/tools/ilovepdf)[Visit site ↗](https://www.google.com/search?q=iLovePDFs%20signup) ![PandaDoc logo](https://appstackbuilder.com/pandadoc.svg) #### [PandaDoc](https://appstackbuilder.com/tools/pandadoc) Free tier available All-in-one document automation — build proposals, quotes, and contracts with templates, pricing tables, e-signatures, and payments. [Pricing & alternatives →](https://appstackbuilder.com/tools/pandadoc)[Visit site ↗](https://www.google.com/search?q=PandaDoc%20signup) ![PDF24 Tools logo](https://www.google.com/s2/favicons?domain=pdf24.org&sz=128) #### [PDF24 Tools](https://appstackbuilder.com/tools/pdf24) Free tier available Completely free PDF toolkit with 30+ tools online and an offline desktop app — no sign-up required. [Pricing & alternatives →](https://appstackbuilder.com/tools/pdf24)[Visit site ↗](https://www.google.com/search?q=PDF24%20Tools%20signup) ![Smallpdf logo](https://www.google.com/s2/favicons?domain=smallpdf.com&sz=128) #### [Smallpdf](https://appstackbuilder.com/tools/smallpdf) Free tier available Popular online PDF suite — convert, compress, merge, edit, sign, and e-sign documents in the browser. [Pricing & alternatives →](https://appstackbuilder.com/tools/smallpdf)[Visit site ↗](https://www.google.com/search?q=Smallpdf%20signup) ![Stirling PDF logo](https://www.google.com/s2/favicons?domain=stirlingpdf.com&sz=128) #### [Stirling PDF](https://appstackbuilder.com/tools/stirling-pdf) Free tier available Open-source, self-hostable PDF toolkit — run 50+ PDF operations locally so files never leave your server. [Pricing & alternatives →](https://appstackbuilder.com/tools/stirling-pdf)[Visit site ↗](https://www.google.com/search?q=Stirling%20PDF%20signup) ### Free E-commerce Platforms Tools(3 free tools) ![Medusa logo](https://appstackbuilder.com/logos/medusa.png) #### [Medusa](https://appstackbuilder.com/tools/medusa) Free tier available Open-source headless commerce engine for Node. [Pricing & alternatives →](https://appstackbuilder.com/tools/medusa)[Visit site ↗](https://www.google.com/search?q=Medusa%20signup) ![Saleor logo](https://appstackbuilder.com/logos/saleor.png) #### [Saleor](https://appstackbuilder.com/tools/saleor) Free tier available Open-source, GraphQL-first headless commerce platform. [Pricing & alternatives →](https://appstackbuilder.com/tools/saleor)[Visit site ↗](https://www.google.com/search?q=Saleor%20signup) ![WooCommerce logo](https://appstackbuilder.com/logos/woocommerce.png) #### [WooCommerce](https://appstackbuilder.com/tools/woocommerce) Free tier available The open-source store plugin for WordPress. [Pricing & alternatives →](https://appstackbuilder.com/tools/woocommerce)[Visit site ↗](https://www.google.com/search?q=WooCommerce%20signup) ### Free Email/Messaging Tools(4 free tools) ![Amazon SES logo](https://www.google.com/s2/favicons?domain=aws.amazon.com&sz=128) #### [Amazon SES](https://appstackbuilder.com/tools/amazon-ses) Free tier available The cheapest transactional email at scale — pay-as-you-go AWS email (\~$0.10 per 1,000 emails). [Pricing & alternatives →](https://appstackbuilder.com/tools/amazon-ses)[Visit site ↗](https://aws.amazon.com/) ![Mailgun logo](https://www.google.com/s2/favicons?domain=mailgun.com&sz=128) #### [Mailgun](https://appstackbuilder.com/tools/mailgun) Free tier available Developer-focused transactional email API with strong deliverability and detailed analytics. [Pricing & alternatives →](https://appstackbuilder.com/tools/mailgun)[Visit site ↗](https://www.google.com/search?q=Mailgun%20signup) ![Resend logo](https://appstackbuilder.com/resend.svg) #### [Resend](https://appstackbuilder.com/tools/resend) Free tier available Developer-first transactional email API built for modern applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/resend)[Visit site ↗](https://resend.com) ![SendGrid logo](https://appstackbuilder.com/sendgrid.svg) #### [SendGrid](https://appstackbuilder.com/tools/sendgrid) Free tier available Scalable email delivery platform for transactional and marketing emails. [Pricing & alternatives →](https://appstackbuilder.com/tools/sendgrid)[Visit site ↗](https://signup.sendgrid.com/) ### Free Event Streaming & Message Queues Tools(4 free tools) ![CloudAMQP logo](https://www.google.com/s2/favicons?domain=cloudamqp.com&sz=128) #### [CloudAMQP](https://appstackbuilder.com/tools/cloudamqp) Free tier available Managed RabbitMQ (and LavinMQ) with a free shared plan and dedicated brokers from $50/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/cloudamqp)[Visit site ↗](https://www.google.com/search?q=CloudAMQP%20signup) ![Confluent Cloud logo](https://www.google.com/s2/favicons?domain=confluent.io&sz=128) #### [Confluent Cloud](https://appstackbuilder.com/tools/confluent-cloud) Free tier available Managed Apache Kafka from the team that created it, with Flink stream processing and 120+ managed connectors. [Pricing & alternatives →](https://appstackbuilder.com/tools/confluent-cloud)[Visit site ↗](https://www.google.com/search?q=Confluent%20Cloud%20signup) ![Redpanda logo](https://www.google.com/s2/favicons?domain=redpanda.com&sz=128) #### [Redpanda](https://appstackbuilder.com/tools/redpanda) Free tier available Kafka-compatible streaming in a single C++ binary with no ZooKeeper or JVM. Free community edition, Serverless and BYOC cloud. [Pricing & alternatives →](https://appstackbuilder.com/tools/redpanda)[Visit site ↗](https://www.google.com/search?q=Redpanda%20signup) ![Synadia Cloud logo](https://www.google.com/s2/favicons?domain=synadia.com&sz=128) #### [Synadia Cloud](https://appstackbuilder.com/tools/synadia-cloud) Free tier available Managed NATS from its creators: pub/sub, JetStream persistence and key-value in one lightweight system. Free Personal plan. [Pricing & alternatives →](https://appstackbuilder.com/tools/synadia-cloud)[Visit site ↗](https://www.google.com/search?q=Synadia%20Cloud%20signup) ### Free Feature Flags & Experiments Tools(6 free tools) ![ConfigCat logo](https://appstackbuilder.com/logos/configcat.png) #### [ConfigCat](https://appstackbuilder.com/tools/configcat) Free tier available Straightforward hosted feature flags with a free tier that never expires and flat, published pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/configcat)[Visit site ↗](https://www.google.com/search?q=ConfigCat%20signup) ![Flagsmith logo](https://appstackbuilder.com/logos/flagsmith.png) #### [Flagsmith](https://appstackbuilder.com/tools/flagsmith) Free tier available Open-source feature flags you can self-host, with hosted plans priced on API requests rather than seats. [Pricing & alternatives →](https://appstackbuilder.com/tools/flagsmith)[Visit site ↗](https://www.google.com/search?q=Flagsmith%20signup) ![GrowthBook logo](https://appstackbuilder.com/logos/growthbook.png) #### [GrowthBook](https://appstackbuilder.com/tools/growthbook) Free tier available Warehouse-native flags and experiments — the stats run on your own data, and the whole platform is open source. [Pricing & alternatives →](https://appstackbuilder.com/tools/growthbook)[Visit site ↗](https://www.google.com/search?q=GrowthBook%20signup) ![LaunchDarkly logo](https://appstackbuilder.com/logos/launchdarkly.ico) #### [LaunchDarkly](https://appstackbuilder.com/tools/launchdarkly) Free tier available The enterprise standard for feature flags: targeting rules, percentage rollouts and instant kill switches across 30 SDKs. [Pricing & alternatives →](https://appstackbuilder.com/tools/launchdarkly)[Visit site ↗](https://www.google.com/search?q=LaunchDarkly%20signup) ![Statsig logo](https://appstackbuilder.com/logos/statsig.png) #### [Statsig](https://appstackbuilder.com/tools/statsig) Free tier available Flags, experiments and product analytics in one tool, with the statistics engine that made it worth switching. [Pricing & alternatives →](https://appstackbuilder.com/tools/statsig)[Visit site ↗](https://www.google.com/search?q=Statsig%20signup) ![Unleash logo](https://appstackbuilder.com/logos/unleash.png) #### [Unleash](https://appstackbuilder.com/tools/unleash) Free tier available Open-source feature flags with a privacy-first architecture — flag evaluation happens in your SDK, never on the vendor's servers. [Pricing & alternatives →](https://appstackbuilder.com/tools/unleash)[Visit site ↗](https://www.google.com/search?q=Unleash%20signup) ### Free Feedback Boards & Roadmaps Tools(3 free tools) ![Canny logo](https://www.google.com/s2/favicons?domain=canny.io&sz=128) #### [Canny](https://appstackbuilder.com/tools/canny) Free tier available Feature request boards with voting, roadmaps and changelogs. It is free for 25 tracked users, and Pro is $79/month billed yearly. [Pricing & alternatives →](https://appstackbuilder.com/tools/canny)[Visit site ↗](https://www.google.com/search?q=Canny%20signup) ![Featurebase logo](https://www.google.com/s2/favicons?domain=featurebase.app&sz=128) #### [Featurebase](https://appstackbuilder.com/tools/featurebase) Free tier available Feedback boards, roadmaps and changelogs bundled with an AI support inbox and help centre, priced per seat from $29. [Pricing & alternatives →](https://appstackbuilder.com/tools/featurebase)[Visit site ↗](https://www.google.com/search?q=Featurebase%20signup) ![Productboard logo](https://www.google.com/s2/favicons?domain=productboard.com&sz=128) #### [Productboard](https://appstackbuilder.com/tools/productboard) Free tier available A product management platform that turns customer feedback into prioritised roadmaps, priced per maker from $19/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/productboard)[Visit site ↗](https://www.google.com/search?q=Productboard%20signup) ### Free Accounting & Finance Tools(3 free tools) M #### [Melio](https://appstackbuilder.com/tools/melio) Free tier available Accounts payable for small businesses: pay vendors by bank transfer free, or by card for a fee, with QuickBooks and Xero sync. [Pricing & alternatives →](https://appstackbuilder.com/tools/melio)[Visit site ↗](https://www.google.com/search?q=Melio%20signup) ![Wave logo](https://appstackbuilder.com/logos/wave.png) #### [Wave](https://appstackbuilder.com/tools/wave) Free tier available Free invoicing and bookkeeping for freelancers and very small businesses — Wave makes its money on payments, not software. [Pricing & alternatives →](https://appstackbuilder.com/tools/wave)[Visit site ↗](https://www.google.com/search?q=Wave%20signup) ![Zoho Books logo](https://appstackbuilder.com/logos/zoho-books.ico) #### [Zoho Books](https://appstackbuilder.com/tools/zoho-books) Free tier available Full double-entry accounting at a fraction of QuickBooks — free under a revenue threshold, $20/month after. [Pricing & alternatives →](https://appstackbuilder.com/tools/zoho-books)[Visit site ↗](https://www.google.com/search?q=Zoho%20Books%20signup) ### Free Frontend Framework Tools(8 free tools) ![Angular logo](https://appstackbuilder.com/angular.svg) #### [Angular](https://appstackbuilder.com/tools/angular) Free tier available A full-featured, opinionated framework for building scalable web applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/angular)[Visit site ↗](https://www.google.com/search?q=Angular%20signup) ![Astro logo](https://www.google.com/s2/favicons?domain=astro.build&sz=128) #### [Astro](https://appstackbuilder.com/tools/astro) Free tier available Content-focused web framework with zero-JS by default and 'islands architecture' — ideal for fast marketing and content sites. [Pricing & alternatives →](https://appstackbuilder.com/tools/astro)[Visit site ↗](https://docs.astro.build/en/getting-started/) ![Nuxt logo](https://www.google.com/s2/favicons?domain=nuxt.com&sz=128) #### [Nuxt](https://appstackbuilder.com/tools/nuxt) Free tier available The intuitive Vue meta-framework — SSR, file routing, and auto-imports for production Vue apps. [Pricing & alternatives →](https://appstackbuilder.com/tools/nuxt)[Visit site ↗](https://www.google.com/search?q=Nuxt%20signup) ![React logo](https://appstackbuilder.com/react.svg) #### [React](https://appstackbuilder.com/tools/react) Free tier available A declarative, component-based JavaScript library for building user interfaces. [Pricing & alternatives →](https://appstackbuilder.com/tools/react)[Visit site ↗](https://www.google.com/search?q=React%20signup) ![Remix logo](https://www.google.com/s2/favicons?domain=remix.run&sz=128) #### [Remix](https://appstackbuilder.com/tools/remix) Free tier available Full-stack React framework focused on web standards, nested routing, and progressive enhancement. [Pricing & alternatives →](https://appstackbuilder.com/tools/remix)[Visit site ↗](https://remix.run/docs/en/main/start/quickstart) ![SolidJS logo](https://www.google.com/s2/favicons?domain=solidjs.com&sz=128) #### [SolidJS](https://appstackbuilder.com/tools/solidjs) Free tier available Reactive UI library with fine-grained reactivity and no virtual DOM — blazing fast with a React-like API. [Pricing & alternatives →](https://appstackbuilder.com/tools/solidjs)[Visit site ↗](https://www.google.com/search?q=SolidJS%20signup) ![SvelteKit logo](https://www.google.com/s2/favicons?domain=svelte.dev&sz=128) #### [SvelteKit](https://appstackbuilder.com/tools/sveltekit) Free tier available Official Svelte meta-framework with file-based routing, SSR, and tiny bundles — leading developer satisfaction in 2026. [Pricing & alternatives →](https://appstackbuilder.com/tools/sveltekit)[Visit site ↗](https://www.google.com/search?q=SvelteKit%20signup) ![Vue logo](https://appstackbuilder.com/vue.svg) #### [Vue](https://appstackbuilder.com/tools/vue) Free tier available A progressive JavaScript framework for building modern user interfaces. [Pricing & alternatives →](https://appstackbuilder.com/tools/vue)[Visit site ↗](https://www.google.com/search?q=Vue%20signup) ### Free All-in-One Development Tools(10 free tools) ![Base44 logo](https://appstackbuilder.com/base44.svg) #### [Base44](https://appstackbuilder.com/tools/base44) Free tier available AI-powered app builder for creating full-stack applications with messaging, integrations, and backend logic. [Pricing & alternatives →](https://appstackbuilder.com/tools/base44)[Visit site ↗](https://base44.com/) ![Bolt.new logo](https://appstackbuilder.com/boltnew.svg) #### [Bolt.new](https://appstackbuilder.com/tools/boltnew) Free tier available AI-powered full-stack app builder that generates, hosts, and deploys applications from natural language prompts. [Pricing & alternatives →](https://appstackbuilder.com/tools/boltnew)[Visit site ↗](https://bolt.new/) ![Bubble logo](https://appstackbuilder.com/bubble.svg) #### [Bubble](https://appstackbuilder.com/tools/bubble) Free tier available No-code platform to build, launch, and scale production-ready web and mobile applications with AI. [Pricing & alternatives →](https://appstackbuilder.com/tools/bubble)[Visit site ↗](https://bubble.io/start-building) ![Dyad logo](https://appstackbuilder.com/dyad.svg) #### [Dyad](https://appstackbuilder.com/tools/dyad) Free tier available Flexible, local, open-source AI app builder with zero lock-in. [Pricing & alternatives →](https://appstackbuilder.com/tools/dyad)[Visit site ↗](https://www.google.com/search?q=Dyad%20signup) ![Lovable logo](https://appstackbuilder.com/lovable.svg) #### [Lovable](https://appstackbuilder.com/tools/lovable) Free tier available Collaborative AI-powered app builder for teams to design, build, and publish projects together in real time. [Pricing & alternatives →](https://appstackbuilder.com/tools/lovable)[Visit site ↗](https://lovable.dev/) ![Mocha logo](https://appstackbuilder.com/mocha.svg) #### [Mocha](https://appstackbuilder.com/tools/mocha) Free tier available AI-powered website builder that lets you create beautiful websites using words instead of code. [Pricing & alternatives →](https://appstackbuilder.com/tools/mocha)[Visit site ↗](https://www.google.com/search?q=Mocha%20signup) ![Next.js logo](https://appstackbuilder.com/nextjs.svg) #### [Next.js](https://appstackbuilder.com/tools/nextjs) Free tier available A full-stack React framework for building production-grade web applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/nextjs)[Visit site ↗](https://nextjs.org/) ![Replit logo](https://appstackbuilder.com/replit.svg) #### [Replit](https://appstackbuilder.com/tools/replit) Free tier available Cloud-based development platform to build, run, and deploy applications with AI-powered agents. [Pricing & alternatives →](https://appstackbuilder.com/tools/replit)[Visit site ↗](https://replit.com) ![Trickle logo](https://appstackbuilder.com/trickle.svg) #### [Trickle](https://appstackbuilder.com/tools/trickle) Free tier available AI-powered website and web app builder with built-in database, hosting, and credit-based AI usage. [Pricing & alternatives →](https://appstackbuilder.com/tools/trickle)[Visit site ↗](https://www.google.com/search?q=Trickle%20signup) ![v0 by Vercel logo](https://appstackbuilder.com/v0.svg) #### [v0 by Vercel](https://appstackbuilder.com/tools/v0) Free tier available AI-powered UI and app generation tool by Vercel for building, iterating, and deploying apps faster. [Pricing & alternatives →](https://appstackbuilder.com/tools/v0)[Visit site ↗](https://www.google.com/search?q=v0%20by%20Vercel%20signup) ### Free Hosting Tools(7 free tools) ![Cloudflare Pages & Workers logo](https://appstackbuilder.com/cloudflare.svg) #### [Cloudflare Pages & Workers](https://appstackbuilder.com/tools/cloudflare-pages-workers) Free tier available Edge-first hosting platform for static sites, serverless functions, and global compute. [Pricing & alternatives →](https://appstackbuilder.com/tools/cloudflare-pages-workers)[Visit site ↗](https://www.google.com/search?q=Cloudflare%20Pages%20%26%20Workers%20signup) ![Microsoft Azure logo](https://www.google.com/s2/favicons?domain=azure.microsoft.com&sz=128) #### [Microsoft Azure](https://appstackbuilder.com/tools/azure) Free tier available Microsoft’s enterprise cloud — App Service, VMs, containers, and a free tier, deeply tied to the Microsoft ecosystem. [Pricing & alternatives →](https://appstackbuilder.com/tools/azure)[Visit site ↗](https://www.google.com/search?q=Microsoft%20Azure%20signup) ![Netlify logo](https://appstackbuilder.com/netlify.svg) #### [Netlify](https://appstackbuilder.com/tools/netlify) Free tier available Frontend-focused hosting platform with global CDN, serverless functions, and Git-based CI/CD. [Pricing & alternatives →](https://appstackbuilder.com/tools/netlify)[Visit site ↗](https://app.netlify.com) ![Oracle Cloud (OCI) logo](https://www.google.com/s2/favicons?domain=oracle.com&sz=128) #### [Oracle Cloud (OCI)](https://appstackbuilder.com/tools/oracle-cloud) Free tier available Home of the most generous Always Free tier — ARM Ampere VMs you can run indefinitely at $0. [Pricing & alternatives →](https://appstackbuilder.com/tools/oracle-cloud)[Visit site ↗](https://www.google.com/search?q=Oracle%20Cloud%20%28OCI%29%20signup) ![Railway logo](https://appstackbuilder.com/railway.svg) #### [Railway](https://appstackbuilder.com/tools/railway) Free tier available Developer-focused cloud platform to deploy apps, databases, and services with usage-based pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/railway)[Visit site ↗](https://railway.app) ![Render logo](https://www.google.com/s2/favicons?domain=render.com&sz=128) #### [Render](https://appstackbuilder.com/tools/render) Free tier available Unified cloud platform to deploy and scale full-stack applications, APIs, background workers, and managed datastores. [Pricing & alternatives →](https://appstackbuilder.com/tools/render)[Visit site ↗](https://www.google.com/search?q=Render%20signup) ![Vercel logo](https://appstackbuilder.com/vercel.svg) #### [Vercel](https://appstackbuilder.com/tools/vercel) Free tier available Frontend-first cloud platform for deploying and scaling web applications with global edge infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/vercel)[Visit site ↗](https://vercel.com) ### Free IDEs & Code Editors Tools(4 free tools) ![IntelliJ IDEA logo](https://www.google.com/s2/favicons?domain=jetbrains.com&sz=128) #### [IntelliJ IDEA](https://appstackbuilder.com/tools/intellij-idea) Free tier available JetBrains’ flagship IDE, now one unified download. It is free for commercial use, and Ultimate costs $719 per user per year for companies. [Pricing & alternatives →](https://appstackbuilder.com/tools/intellij-idea)[Visit site ↗](https://www.google.com/search?q=IntelliJ%20IDEA%20signup) ![Neovim logo](https://www.google.com/s2/favicons?domain=neovim.io&sz=128) #### [Neovim](https://appstackbuilder.com/tools/neovim) Free tier available The modern fork of Vim, with Lua configuration, a built-in LSP client and Tree-sitter. It is free and runs in any terminal. [Pricing & alternatives →](https://appstackbuilder.com/tools/neovim)[Visit site ↗](https://www.google.com/search?q=Neovim%20signup) ![Visual Studio Code logo](https://www.google.com/s2/favicons?domain=code.visualstudio.com&sz=128) #### [Visual Studio Code](https://appstackbuilder.com/tools/vscode) Free tier available The most-used code editor in the world. It is free, runs on every desktop OS, and is the base that Cursor, Windsurf and most AI editors fork. [Pricing & alternatives →](https://appstackbuilder.com/tools/vscode)[Visit site ↗](https://www.google.com/search?q=Visual%20Studio%20Code%20signup) ![Zed logo](https://www.google.com/s2/favicons?domain=zed.dev&sz=128) #### [Zed](https://appstackbuilder.com/tools/zed) Free tier available A GPU-accelerated editor written in Rust by the creators of Atom. It is free and open source, with $10/month Pro for hosted AI. [Pricing & alternatives →](https://appstackbuilder.com/tools/zed)[Visit site ↗](https://www.google.com/search?q=Zed%20signup) ### Free Image & Media Optimization Tools(4 free tools) ![Cloudinary logo](https://www.google.com/s2/favicons?domain=cloudinary.com&sz=128) #### [Cloudinary](https://appstackbuilder.com/tools/cloudinary) Free tier available Upload, transform and deliver images and video through URL parameters and a global CDN. Free plan with 25 credits a month. [Pricing & alternatives →](https://appstackbuilder.com/tools/cloudinary)[Visit site ↗](https://www.google.com/search?q=Cloudinary%20signup) ![ImageKit logo](https://www.google.com/s2/favicons?domain=imagekit.io&sz=128) #### [ImageKit](https://appstackbuilder.com/tools/imagekit) Free tier available Real-time image and video optimisation with a CDN, free up to 20 GB of bandwidth, then from $9/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/imagekit)[Visit site ↗](https://www.google.com/search?q=ImageKit%20signup) ![imgix logo](https://www.google.com/s2/favicons?domain=imgix.com&sz=128) #### [imgix](https://appstackbuilder.com/tools/imgix) Free tier available URL-based image processing and delivery that works on top of your own storage. Plans from $25/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/imgix)[Visit site ↗](https://www.google.com/search?q=imgix%20signup) ![Uploadcare logo](https://www.google.com/s2/favicons?domain=uploadcare.com&sz=128) #### [Uploadcare](https://appstackbuilder.com/tools/uploadcare) Free tier available File uploading, storage, image processing and CDN delivery in one API, with a ready-made upload widget. [Pricing & alternatives →](https://appstackbuilder.com/tools/uploadcare)[Visit site ↗](https://www.google.com/search?q=Uploadcare%20signup) ### Free Incident Management & On-Call Tools(2 free tools) ![incident.io logo](https://www.google.com/s2/favicons?domain=incident.io&sz=128) #### [incident.io](https://appstackbuilder.com/tools/incident-io) Free tier available Slack-native incident response with on-call, status pages and post-mortems in one product. Team is $19 per user, plus $10 for on-call. [Pricing & alternatives →](https://appstackbuilder.com/tools/incident-io)[Visit site ↗](https://www.google.com/search?q=incident.io%20signup) ![PagerDuty logo](https://www.google.com/s2/favicons?domain=pagerduty.com&sz=128) #### [PagerDuty](https://appstackbuilder.com/tools/pagerduty) Free tier available The on-call and alerting standard: schedules, escalations and phone, SMS and push paging. It is free for up to 5 users, then $25 per user. [Pricing & alternatives →](https://appstackbuilder.com/tools/pagerduty)[Visit site ↗](https://www.google.com/search?q=PagerDuty%20signup) ### Free Infrastructure as Code Tools(4 free tools) ![AWS CloudFormation logo](https://www.google.com/s2/favicons?domain=aws.amazon.com&sz=128) #### [AWS CloudFormation](https://appstackbuilder.com/tools/aws-cloudformation) Free tier available AWS's native infrastructure as code. It is free for AWS resources and has no state file to manage, but it only covers AWS. [Pricing & alternatives →](https://appstackbuilder.com/tools/aws-cloudformation)[Visit site ↗](https://www.google.com/search?q=AWS%20CloudFormation%20signup) ![OpenTofu logo](https://www.google.com/s2/favicons?domain=opentofu.org&sz=128) #### [OpenTofu](https://appstackbuilder.com/tools/opentofu) Free tier available The open-source fork of Terraform under the Linux Foundation. It is a drop-in replacement that has since added features Terraform lacks, such as built-in state encryption. [Pricing & alternatives →](https://appstackbuilder.com/tools/opentofu)[Visit site ↗](https://www.google.com/search?q=OpenTofu%20signup) ![Pulumi logo](https://www.google.com/s2/favicons?domain=pulumi.com&sz=128) #### [Pulumi](https://appstackbuilder.com/tools/pulumi) Free tier available Infrastructure as code in TypeScript, Python, Go, C#, Java or YAML. The engine is open source, and Pulumi Cloud starts at $40/month for teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/pulumi)[Visit site ↗](https://www.google.com/search?q=Pulumi%20signup) ![Terraform logo](https://www.google.com/s2/favicons?domain=terraform.io&sz=128) #### [Terraform](https://appstackbuilder.com/tools/terraform) Free tier available The default language for infrastructure as code. The CLI is free. HCP Terraform, the managed runner, bills per managed resource, and the unlimited free plan ended in March 2026. [Pricing & alternatives →](https://appstackbuilder.com/tools/terraform)[Visit site ↗](https://www.google.com/search?q=Terraform%20signup) ### Free Internal Tools & Admin Panels Tools(5 free tools) ![Appsmith logo](https://appstackbuilder.com/logos/appsmith.png) #### [Appsmith](https://appstackbuilder.com/tools/appsmith) Free tier available Open-source internal tool builder — the Retool model, self-hostable, at $15 per user on cloud. [Pricing & alternatives →](https://appstackbuilder.com/tools/appsmith)[Visit site ↗](https://www.google.com/search?q=Appsmith%20signup) ![Budibase logo](https://appstackbuilder.com/logos/budibase.png) #### [Budibase](https://appstackbuilder.com/tools/budibase) Free tier available Low-code internal apps with a built-in database, automations and flat monthly pricing rather than per-seat billing. [Pricing & alternatives →](https://appstackbuilder.com/tools/budibase)[Visit site ↗](https://www.google.com/search?q=Budibase%20signup) ![Retool logo](https://appstackbuilder.com/logos/retool.ico) #### [Retool](https://appstackbuilder.com/tools/retool) Free tier available Drag-and-drop admin panels and internal apps wired straight to your database and APIs, priced per builder. [Pricing & alternatives →](https://appstackbuilder.com/tools/retool)[Visit site ↗](https://www.google.com/search?q=Retool%20signup) ![ToolJet logo](https://appstackbuilder.com/logos/tooljet.ico) #### [ToolJet](https://appstackbuilder.com/tools/tooljet) Free tier available Open-source internal tool builder with unlimited builders on paid plans — the seat maths that suits engineering-heavy teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/tooljet)[Visit site ↗](https://www.google.com/search?q=ToolJet%20signup) ![Windmill logo](https://appstackbuilder.com/logos/windmill.ico) #### [Windmill](https://appstackbuilder.com/tools/windmill) Free tier available Open-source developer platform that turns scripts in Python, TypeScript, Go or Bash into internal UIs, workflows and cron jobs. [Pricing & alternatives →](https://appstackbuilder.com/tools/windmill)[Visit site ↗](https://www.google.com/search?q=Windmill%20signup) ### Free Notes & Knowledge Base Tools(3 free tools) ![Anytype logo](https://www.google.com/s2/favicons?domain=anytype.io&sz=128) #### [Anytype](https://appstackbuilder.com/tools/anytype) Free tier available Open-source, end-to-end encrypted, local-first workspace — a private alternative to Notion and Obsidian. [Pricing & alternatives →](https://appstackbuilder.com/tools/anytype)[Visit site ↗](https://www.google.com/search?q=Anytype%20signup) ![Logseq logo](https://www.google.com/s2/favicons?domain=logseq.com&sz=128) #### [Logseq](https://appstackbuilder.com/tools/logseq) Free tier available Free, open-source, local-first outliner for networked notes and personal knowledge management. [Pricing & alternatives →](https://appstackbuilder.com/tools/logseq)[Visit site ↗](https://www.google.com/search?q=Logseq%20signup) ![Obsidian logo](https://www.google.com/s2/favicons?domain=obsidian.md&sz=128) #### [Obsidian](https://appstackbuilder.com/tools/obsidian) Free tier available Local-first, markdown knowledge base with backlinks and graph view — free for personal use. [Pricing & alternatives →](https://appstackbuilder.com/tools/obsidian)[Visit site ↗](https://www.google.com/search?q=Obsidian%20signup) ### Free Launchers & Productivity Tools(4 free tools) ![Albert logo](https://www.google.com/s2/favicons?domain=albertlauncher.github.io&sz=128) #### [Albert](https://appstackbuilder.com/tools/albert) Free tier available Free, open-source keyboard launcher for Linux — fuzzy search apps, files, calculations, and more. [Pricing & alternatives →](https://appstackbuilder.com/tools/albert)[Visit site ↗](https://www.google.com/search?q=Albert%20signup) ![Alfred logo](https://www.google.com/s2/favicons?domain=alfredapp.com&sz=128) #### [Alfred](https://appstackbuilder.com/tools/alfred) Free tier available The classic macOS launcher and productivity app — search, clipboard history, and powerful workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/alfred)[Visit site ↗](https://www.google.com/search?q=Alfred%20signup) ![Flow Launcher logo](https://www.google.com/s2/favicons?domain=flowlauncher.com&sz=128) #### [Flow Launcher](https://appstackbuilder.com/tools/flow-launcher) Free tier available Free, open-source quick launcher for Windows — search apps, files, and the web with a plugin ecosystem. [Pricing & alternatives →](https://appstackbuilder.com/tools/flow-launcher)[Visit site ↗](https://www.google.com/search?q=Flow%20Launcher%20signup) ![Raycast logo](https://www.google.com/s2/favicons?domain=raycast.com&sz=128) #### [Raycast](https://appstackbuilder.com/tools/raycast) Free tier available Blazing-fast launcher and productivity hub for macOS (and Windows) with extensions, snippets, and AI. [Pricing & alternatives →](https://appstackbuilder.com/tools/raycast)[Visit site ↗](https://www.google.com/search?q=Raycast%20signup) ### Free Link Shorteners & Branded Links Tools(4 free tools) ![Bitly logo](https://www.google.com/s2/favicons?domain=bitly.com&sz=128) #### [Bitly](https://appstackbuilder.com/tools/bitly) Free tier available The best-known link shortener, with branded links, QR codes and a link-in-bio page. Free for 5 links a month. [Pricing & alternatives →](https://appstackbuilder.com/tools/bitly)[Visit site ↗](https://www.google.com/search?q=Bitly%20signup) ![Dub logo](https://www.google.com/s2/favicons?domain=dub.co&sz=128) #### [Dub](https://appstackbuilder.com/tools/dub) Free tier available Open-source link management with branded short links, click and conversion analytics, and a built-in affiliate program. [Pricing & alternatives →](https://appstackbuilder.com/tools/dub)[Visit site ↗](https://www.google.com/search?q=Dub%20signup) ![Rebrandly logo](https://www.google.com/s2/favicons?domain=rebrandly.com&sz=128) #### [Rebrandly](https://appstackbuilder.com/tools/rebrandly) Free tier available Branded short links on your own domain, with QR codes and analytics. From $8/month billed annually. [Pricing & alternatives →](https://appstackbuilder.com/tools/rebrandly)[Visit site ↗](https://www.google.com/search?q=Rebrandly%20signup) ![Short.io logo](https://www.google.com/s2/favicons?domain=short.io&sz=128) #### [Short.io](https://appstackbuilder.com/tools/short-io) Free tier available Branded short links with a generous free plan of 1,000 links, and unlimited links from $18/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/short-io)[Visit site ↗](https://www.google.com/search?q=Short.io%20signup) ### Free LLM Observability & Evals Tools(4 free tools) ![Braintrust logo](https://www.google.com/s2/favicons?domain=braintrust.dev&sz=128) #### [Braintrust](https://appstackbuilder.com/tools/braintrust) Free tier available Eval-first AI observability with unlimited users on every plan. It is priced on data processed and scores run, not seats. [Pricing & alternatives →](https://appstackbuilder.com/tools/braintrust)[Visit site ↗](https://www.google.com/search?q=Braintrust%20signup) ![Langfuse logo](https://www.google.com/s2/favicons?domain=langfuse.com&sz=128) #### [Langfuse](https://appstackbuilder.com/tools/langfuse) Free tier available Open-source LLM tracing, evals and prompt management: MIT-licensed, self-hostable, and $29/month in the cloud with unlimited users. [Pricing & alternatives →](https://appstackbuilder.com/tools/langfuse)[Visit site ↗](https://www.google.com/search?q=Langfuse%20signup) ![LangSmith logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128) #### [LangSmith](https://appstackbuilder.com/tools/langsmith) Free tier available LangChain's tracing and evaluation platform, the deepest fit for LangGraph agents. It is priced per seat plus per trace. [Pricing & alternatives →](https://appstackbuilder.com/tools/langsmith)[Visit site ↗](https://www.google.com/search?q=LangSmith%20signup) ![OpenTelemetry logo](https://www.google.com/s2/favicons?domain=opentelemetry.io&sz=128) #### [OpenTelemetry](https://appstackbuilder.com/tools/opentelemetry) Free tier available The vendor-neutral standard for traces, metrics and logs, with GenAI conventions that describe LLM calls, agents and MCP in one shared schema. [Pricing & alternatives →](https://appstackbuilder.com/tools/opentelemetry)[Visit site ↗](https://www.google.com/search?q=OpenTelemetry%20signup) ### Free LLM Provider Tools(11 free tools) ![Cerebras logo](https://www.google.com/s2/favicons?domain=cerebras.ai&sz=128) #### [Cerebras](https://appstackbuilder.com/tools/cerebras) Free tier available The fastest LLM inference available — open models on wafer-scale hardware, with a generous free tier (1M tokens/day). [Pricing & alternatives →](https://appstackbuilder.com/tools/cerebras)[Visit site ↗](https://www.google.com/search?q=Cerebras%20signup) ![Cohere logo](https://www.google.com/s2/favicons?domain=cohere.com&sz=128) #### [Cohere](https://appstackbuilder.com/tools/cohere) Free tier available Enterprise LLM platform built for RAG and search — Command models plus best-in-class Embed and Rerank. [Pricing & alternatives →](https://appstackbuilder.com/tools/cohere)[Visit site ↗](https://www.google.com/search?q=Cohere%20signup) ![DeepSeek logo](https://www.google.com/s2/favicons?domain=deepseek.com&sz=128) #### [DeepSeek](https://appstackbuilder.com/tools/deepseek) Free tier available High-quality, very low-cost LLM API (DeepSeek V4) with strong reasoning and coding at a fraction of frontier prices. [Pricing & alternatives →](https://appstackbuilder.com/tools/deepseek)[Visit site ↗](https://www.google.com/search?q=DeepSeek%20signup) ![Fireworks AI logo](https://www.google.com/s2/favicons?domain=fireworks.ai&sz=128) #### [Fireworks AI](https://appstackbuilder.com/tools/fireworks-ai) Free tier available Ultra-low-latency serverless inference and fine-tuning for open models — sub-100ms for common models. [Pricing & alternatives →](https://appstackbuilder.com/tools/fireworks-ai)[Visit site ↗](https://www.google.com/search?q=Fireworks%20AI%20signup) ![Google Gemini API logo](https://appstackbuilder.com/gemini.svg) #### [Google Gemini API](https://appstackbuilder.com/tools/google-gemini-api) Free tier available Google's Gemini API — multimodal AI models with the largest context window and competitive pricing for high-volume applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-gemini-api)[Visit site ↗](https://www.google.com/search?q=Google%20Gemini%20API%20signup) ![Grok API (xAI) logo](https://appstackbuilder.com/grok.svg) #### [Grok API (xAI)](https://appstackbuilder.com/tools/grok-api) Free tier available xAI's Grok API — real-time internet access, large context window, and competitive pricing for AI-powered apps. [Pricing & alternatives →](https://appstackbuilder.com/tools/grok-api)[Visit site ↗](https://www.google.com/search?q=Grok%20API%20%28xAI%29%20signup) ![Groq logo](https://www.google.com/s2/favicons?domain=groq.com&sz=128) #### [Groq](https://appstackbuilder.com/tools/groq) Free tier available Ultra-fast LLM inference API powered by custom LPUs — sub-second responses with a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/groq)[Visit site ↗](https://www.google.com/search?q=Groq%20signup) ![Mistral AI API logo](https://appstackbuilder.com/mistral.svg) #### [Mistral AI API](https://appstackbuilder.com/tools/mistral-api) Free tier available European open-weight LLM API with strong coding models, function calling, and a free tier via La Plateforme. [Pricing & alternatives →](https://appstackbuilder.com/tools/mistral-api)[Visit site ↗](https://www.google.com/search?q=Mistral%20AI%20API%20signup) ![NVIDIA NIM logo](https://www.google.com/s2/favicons?domain=build.nvidia.com&sz=128) #### [NVIDIA NIM](https://appstackbuilder.com/tools/nvidia-nim) Free tier available NVIDIA's inference layer — a free-to-prototype catalog of 40+ optimized open-weight LLMs with an OpenAI-compatible API. [Pricing & alternatives →](https://appstackbuilder.com/tools/nvidia-nim)[Visit site ↗](https://www.google.com/search?q=NVIDIA%20NIM%20signup) ![OpenRouter logo](https://www.google.com/s2/favicons?domain=openrouter.ai&sz=128) #### [OpenRouter](https://appstackbuilder.com/tools/openrouter) Free tier available One API for hundreds of LLMs (Claude, GPT, Llama, DeepSeek…) with automatic routing, fallbacks, and free models. [Pricing & alternatives →](https://appstackbuilder.com/tools/openrouter)[Visit site ↗](https://www.google.com/search?q=OpenRouter%20signup) ![Together AI logo](https://www.google.com/s2/favicons?domain=together.ai&sz=128) #### [Together AI](https://appstackbuilder.com/tools/together-ai) Free tier available Serverless inference and fine-tuning for 200+ open-source models — the price leader at scale, with $25 free credits. [Pricing & alternatives →](https://appstackbuilder.com/tools/together-ai)[Visit site ↗](https://www.google.com/search?q=Together%20AI%20signup) ### Free Localization & Translation Tools(4 free tools) L #### [Locize](https://appstackbuilder.com/tools/locize) Free tier available Translation management from the i18next team, with a CDN that serves translations to your app at runtime. [Pricing & alternatives →](https://appstackbuilder.com/tools/locize)[Visit site ↗](https://www.google.com/search?q=Locize%20signup) P #### [POEditor](https://appstackbuilder.com/tools/poeditor) Free tier available Straightforward translation management priced by string count, with unlimited projects and contributors on every tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/poeditor)[Visit site ↗](https://www.google.com/search?q=POEditor%20signup) ![Tolgee logo](https://appstackbuilder.com/logos/tolgee.png) #### [Tolgee](https://appstackbuilder.com/tools/tolgee) Free tier available Open-source localisation platform whose in-context editor lets you translate strings by alt-clicking them in your running app. [Pricing & alternatives →](https://appstackbuilder.com/tools/tolgee)[Visit site ↗](https://www.google.com/search?q=Tolgee%20signup) ![Weblate logo](https://appstackbuilder.com/logos/weblate.png) #### [Weblate](https://appstackbuilder.com/tools/weblate) Free tier available Copyleft web-based translation with tight Git integration — free hosting for libre projects, self-hosted for everyone else. [Pricing & alternatives →](https://appstackbuilder.com/tools/weblate)[Visit site ↗](https://www.google.com/search?q=Weblate%20signup) ### Free Maps & Location Tools(5 free tools) G #### [Geoapify](https://appstackbuilder.com/tools/geoapify) Free tier available OpenStreetMap-powered geocoding, routing, isolines and places APIs with straightforward daily-credit tiers. [Pricing & alternatives →](https://appstackbuilder.com/tools/geoapify)[Visit site ↗](https://www.google.com/search?q=Geoapify%20signup) L #### [LocationIQ](https://appstackbuilder.com/tools/locationiq) Free tier available Geocoding, maps and routing APIs at low flat rates, built on OpenStreetMap with generous daily request limits. [Pricing & alternatives →](https://appstackbuilder.com/tools/locationiq)[Visit site ↗](https://www.google.com/search?q=LocationIQ%20signup) M #### [Mapbox](https://appstackbuilder.com/tools/mapbox) Free tier available Developer-first mapping platform with fully customisable vector map styles, navigation and search, priced per map load. [Pricing & alternatives →](https://appstackbuilder.com/tools/mapbox)[Visit site ↗](https://www.google.com/search?q=Mapbox%20signup) M #### [MapTiler](https://appstackbuilder.com/tools/maptiler) Free tier available OpenStreetMap-based map tiles, geocoding and hosting with a genuinely cheap flat tier and self-hosting via MapTiler Server. [Pricing & alternatives →](https://appstackbuilder.com/tools/maptiler)[Visit site ↗](https://www.google.com/search?q=MapTiler%20signup) P #### [Protomaps](https://appstackbuilder.com/tools/protomaps) Free tier available Open-source map stack that packs the whole planet into a single file you host yourself — no tile server, no per-request billing. [Pricing & alternatives →](https://appstackbuilder.com/tools/protomaps)[Visit site ↗](https://www.google.com/search?q=Protomaps%20signup) ### Free MCP Testing & Hosting Tools(3 free tools) ![MCP Inspector logo](https://www.google.com/s2/favicons?domain=modelcontextprotocol.io&sz=128) #### [MCP Inspector](https://appstackbuilder.com/tools/mcp-inspector) Free tier available The official open-source debugger for MCP servers: list tools, call them by hand and read the raw JSON-RPC traffic. [Pricing & alternatives →](https://appstackbuilder.com/tools/mcp-inspector)[Visit site ↗](https://www.google.com/search?q=MCP%20Inspector%20signup) ![MCP Playground Online logo](https://www.google.com/s2/favicons?domain=mcpplaygroundonline.com&sz=128) #### [MCP Playground Online](https://appstackbuilder.com/tools/mcp-playground-online) Free tier available Browser-based MCP platform: test servers, run evals, scan against the OWASP MCP Top 10, check AI readiness and try them with 60+ models in Agent Studio. [Pricing & alternatives →](https://appstackbuilder.com/tools/mcp-playground-online)[Visit site ↗](https://www.google.com/search?q=MCP%20Playground%20Online%20signup) ![Smithery logo](https://www.google.com/s2/favicons?domain=smithery.ai&sz=128) #### [Smithery](https://appstackbuilder.com/tools/smithery) Free tier available The largest MCP server registry, plus hosting and managed OAuth so agents can connect to servers without running them. [Pricing & alternatives →](https://appstackbuilder.com/tools/smithery)[Visit site ↗](https://www.google.com/search?q=Smithery%20signup) ### Free AI Meeting Notes Tools(4 free tools) ![Fireflies.ai logo](https://www.google.com/s2/favicons?domain=fireflies.ai&sz=128) #### [Fireflies.ai](https://appstackbuilder.com/tools/fireflies) Free tier available AI notetaker that records, transcribes and summarises calls, then pushes notes and action items into your CRM and project tools. [Pricing & alternatives →](https://appstackbuilder.com/tools/fireflies)[Visit site ↗](https://www.google.com/search?q=Fireflies.ai%20signup) ![Granola logo](https://www.google.com/s2/favicons?domain=granola.ai&sz=128) #### [Granola](https://appstackbuilder.com/tools/granola) Free tier available Bot-free AI notepad: it listens to your device audio, and you jot rough notes that AI turns into a clean summary. No bot joins the call. [Pricing & alternatives →](https://appstackbuilder.com/tools/granola)[Visit site ↗](https://www.google.com/search?q=Granola%20signup) ![Meetily logo](https://www.google.com/s2/favicons?domain=meetily.ai&sz=128) #### [Meetily](https://appstackbuilder.com/tools/meetily) Free tier available Open-source, privacy-first AI meeting notes. Transcribes locally with Whisper or Parakeet and summarises without sending audio to the cloud. Free Community Edition. [Pricing & alternatives →](https://appstackbuilder.com/tools/meetily)[Visit site ↗](https://www.google.com/search?q=Meetily%20signup) ![Otter.ai logo](https://www.google.com/s2/favicons?domain=otter.ai&sz=128) #### [Otter.ai](https://appstackbuilder.com/tools/otter-ai) Free tier available AI meeting assistant that joins Zoom, Meet and Teams to transcribe live, summarise and pull out action items. Free for 300 minutes a month. [Pricing & alternatives →](https://appstackbuilder.com/tools/otter-ai)[Visit site ↗](https://www.google.com/search?q=Otter.ai%20signup) ### Free Mobile Framework Tools(6 free tools) ![Expo (React Native) logo](https://appstackbuilder.com/expo.svg) #### [Expo (React Native)](https://appstackbuilder.com/tools/expo) Free tier available The fastest way to build cross-platform iOS and Android apps with React Native. [Pricing & alternatives →](https://appstackbuilder.com/tools/expo)[Visit site ↗](https://www.google.com/search?q=Expo%20%28React%20Native%29%20signup) ![Flutter logo](https://appstackbuilder.com/flutter.svg) #### [Flutter](https://appstackbuilder.com/tools/flutter) Free tier available Google's UI toolkit for building beautiful, natively compiled apps from a single Dart codebase. [Pricing & alternatives →](https://appstackbuilder.com/tools/flutter)[Visit site ↗](https://www.google.com/search?q=Flutter%20signup) ![Ionic logo](https://www.google.com/s2/favicons?domain=ionicframework.com&sz=128) #### [Ionic](https://appstackbuilder.com/tools/ionic) Free tier available Build cross-platform mobile and web apps with web tech (Angular/React/Vue) and one shared codebase. [Pricing & alternatives →](https://appstackbuilder.com/tools/ionic)[Visit site ↗](https://www.google.com/search?q=Ionic%20signup) ![Kotlin Multiplatform logo](https://www.google.com/s2/favicons?domain=kotlinlang.org&sz=128) #### [Kotlin Multiplatform](https://appstackbuilder.com/tools/kotlin-multiplatform) Free tier available Share business logic (and increasingly UI via Compose) across iOS, Android, web, and desktop from one Kotlin codebase. [Pricing & alternatives →](https://appstackbuilder.com/tools/kotlin-multiplatform)[Visit site ↗](https://www.google.com/search?q=Kotlin%20Multiplatform%20signup) ![React Native (bare) logo](https://appstackbuilder.com/react-native.svg) #### [React Native (bare)](https://appstackbuilder.com/tools/react-native) Free tier available Meta's framework for building native mobile apps using JavaScript/TypeScript without Expo. [Pricing & alternatives →](https://appstackbuilder.com/tools/react-native)[Visit site ↗](https://www.google.com/search?q=React%20Native%20%28bare%29%20signup) ![Tauri logo](https://www.google.com/s2/favicons?domain=tauri.app&sz=128) #### [Tauri](https://appstackbuilder.com/tools/tauri) Free tier available Build tiny, secure cross-platform desktop and mobile apps with a Rust core and any web frontend. [Pricing & alternatives →](https://appstackbuilder.com/tools/tauri)[Visit site ↗](https://www.google.com/search?q=Tauri%20signup) ### Free Monitoring & Observability Tools(7 free tools) ![Axiom logo](https://www.google.com/s2/favicons?domain=axiom.co&sz=128) #### [Axiom](https://appstackbuilder.com/tools/axiom) Free tier available Serverless log management and analytics built for huge volumes at low cost — 500GB/month free. [Pricing & alternatives →](https://appstackbuilder.com/tools/axiom)[Visit site ↗](https://www.google.com/search?q=Axiom%20signup) ![Better Stack logo](https://www.google.com/s2/favicons?domain=betterstack.com&sz=128) #### [Better Stack](https://appstackbuilder.com/tools/better-stack) Free tier available Modern, developer-friendly observability — logs, metrics, uptime monitoring, and incident management in one clean UI. [Pricing & alternatives →](https://appstackbuilder.com/tools/better-stack)[Visit site ↗](https://www.google.com/search?q=Better%20Stack%20signup) ![Datadog logo](https://www.google.com/s2/favicons?domain=datadoghq.com&sz=128) #### [Datadog](https://appstackbuilder.com/tools/datadog) Free tier available Enterprise-grade, full-stack observability — infrastructure, APM, logs, and 800+ integrations. Usage-based. [Pricing & alternatives →](https://appstackbuilder.com/tools/datadog)[Visit site ↗](https://www.google.com/search?q=Datadog%20signup) ![Grafana Cloud logo](https://www.google.com/s2/favicons?domain=grafana.com&sz=128) #### [Grafana Cloud](https://appstackbuilder.com/tools/grafana-cloud) Free tier available Managed Grafana, Prometheus, Loki, and Tempo — the most generous free tier for metrics, logs, and traces. [Pricing & alternatives →](https://appstackbuilder.com/tools/grafana-cloud)[Visit site ↗](https://www.google.com/search?q=Grafana%20Cloud%20signup) ![Highlight.io logo](https://www.google.com/s2/favicons?domain=highlight.io&sz=128) #### [Highlight.io](https://appstackbuilder.com/tools/highlight) Free tier available Open-source, full-stack monitoring with session replay, error tracking, and logs in one platform. [Pricing & alternatives →](https://appstackbuilder.com/tools/highlight)[Visit site ↗](https://www.google.com/search?q=Highlight.io%20signup) ![LogRocket logo](https://appstackbuilder.com/logrocket.png) #### [LogRocket](https://appstackbuilder.com/tools/logrocket) Free tier available Session replay and error tracking to understand user experience and debug issues. [Pricing & alternatives →](https://appstackbuilder.com/tools/logrocket)[Visit site ↗](https://www.google.com/search?q=LogRocket%20signup) ![Sentry logo](https://appstackbuilder.com/sentry.svg) #### [Sentry](https://appstackbuilder.com/tools/sentry) Free tier available Application monitoring and error tracking platform for developers. [Pricing & alternatives →](https://appstackbuilder.com/tools/sentry)[Visit site ↗](https://www.google.com/search?q=Sentry%20signup) ### Free Newsletter & Lifecycle Email Tools(4 free tools) ![Beehiiv logo](https://appstackbuilder.com/beehiiv.svg) #### [Beehiiv](https://appstackbuilder.com/tools/beehiiv) Free tier available Newsletter platform built for growth — with built-in monetization, referral programs, and ad network. [Pricing & alternatives →](https://appstackbuilder.com/tools/beehiiv)[Visit site ↗](https://www.beehiiv.com) ![Ghost logo](https://www.google.com/s2/favicons?domain=ghost.org&sz=128) #### [Ghost](https://appstackbuilder.com/tools/ghost) Free tier available Open-source publishing platform for blogs, newsletters, and memberships — with native subscriptions. [Pricing & alternatives →](https://appstackbuilder.com/tools/ghost)[Visit site ↗](https://www.google.com/search?q=Ghost%20signup) ![Kit (ConvertKit) logo](https://appstackbuilder.com/kit.svg) #### [Kit (ConvertKit)](https://appstackbuilder.com/tools/kit) Free tier available Email platform for creators — with powerful automations, paid newsletters, and a free plan up to 10,000 subscribers. [Pricing & alternatives →](https://appstackbuilder.com/tools/kit)[Visit site ↗](https://www.google.com/search?q=Kit%20%28ConvertKit%29%20signup) ![Loops logo](https://www.google.com/s2/favicons?domain=loops.so&sz=128) #### [Loops](https://appstackbuilder.com/tools/loops) Free tier available Modern email platform for SaaS — transactional + marketing emails with a clean API and great deliverability. [Pricing & alternatives →](https://appstackbuilder.com/tools/loops)[Visit site ↗](https://loops.so) ### Free Notifications & Realtime Tools(7 free tools) A #### [Ably](https://appstackbuilder.com/tools/ably) Free tier available Realtime messaging platform with guaranteed ordering, delivery and history — pub/sub, presence and push, on a global edge network. [Pricing & alternatives →](https://appstackbuilder.com/tools/ably)[Visit site ↗](https://www.google.com/search?q=Ably%20signup) C #### [Courier](https://appstackbuilder.com/tools/courier) Free tier available Notification API and template studio that routes one send across email, SMS, push and chat, priced per send. [Pricing & alternatives →](https://appstackbuilder.com/tools/courier)[Visit site ↗](https://www.google.com/search?q=Courier%20signup) K #### [Knock](https://appstackbuilder.com/tools/knock) Free tier available Notification infrastructure as a service: cross-channel workflows, batching, user preferences and an in-app feed, without running any of it. [Pricing & alternatives →](https://appstackbuilder.com/tools/knock)[Visit site ↗](https://www.google.com/search?q=Knock%20signup) M #### [MagicBell](https://appstackbuilder.com/tools/magicbell) Free tier available Embeddable notification inbox with ready-made UI components for React, Vue, Ember and iOS, backed by a delivery API. [Pricing & alternatives →](https://appstackbuilder.com/tools/magicbell)[Visit site ↗](https://www.google.com/search?q=MagicBell%20signup) N #### [Novu](https://appstackbuilder.com/tools/novu) Free tier available Open-source notification infrastructure: one workflow drives email, SMS, push, chat and a drop-in in-app inbox. [Pricing & alternatives →](https://appstackbuilder.com/tools/novu)[Visit site ↗](https://www.google.com/search?q=Novu%20signup) O #### [OneSignal](https://appstackbuilder.com/tools/onesignal) Free tier available Push, in-app, email and SMS messaging platform aimed at mobile and web audiences, with segmentation and campaign tooling. [Pricing & alternatives →](https://appstackbuilder.com/tools/onesignal)[Visit site ↗](https://www.google.com/search?q=OneSignal%20signup) P #### [Pusher Channels](https://appstackbuilder.com/tools/pusher) Free tier available Hosted WebSocket pub/sub for realtime features — live updates, presence and in-app alerts — priced by connections and daily messages. [Pricing & alternatives →](https://appstackbuilder.com/tools/pusher)[Visit site ↗](https://www.google.com/search?q=Pusher%20Channels%20signup) ### Free Product Onboarding & Tours Tools(1 free tool) ![Pendo logo](https://www.google.com/s2/favicons?domain=pendo.io&sz=128) #### [Pendo](https://appstackbuilder.com/tools/pendo) Free tier available Product analytics and in-app guides on one platform, free up to 500 MAUs, with paid plans by quote. [Pricing & alternatives →](https://appstackbuilder.com/tools/pendo)[Visit site ↗](https://www.google.com/search?q=Pendo%20signup) ### Free Product Launch Platforms Tools(8 free tools) ![Fazier logo](https://appstackbuilder.com/fazier.svg) #### [Fazier](https://appstackbuilder.com/tools/fazier) Free tier available Free daily product discovery platform — submit your product to be featured alongside other new launches and get community upvotes. [Pricing & alternatives →](https://appstackbuilder.com/tools/fazier)[Visit site ↗](https://www.google.com/search?q=Fazier%20signup) ![Hacker News logo](https://appstackbuilder.com/hackernews.svg) #### [Hacker News](https://appstackbuilder.com/tools/hackernews) Free tier available A social news platform focused on startups, technology, and entrepreneurship. [Pricing & alternatives →](https://appstackbuilder.com/tools/hackernews)[Visit site ↗](https://www.google.com/search?q=Hacker%20News%20signup) ![PeerPush logo](https://appstackbuilder.com/peerpush.svg) #### [PeerPush](https://appstackbuilder.com/tools/peerpush) Free tier available A launch and discovery platform where builders get peer-powered promotion, real feedback, and sustained visibility beyond launch day. [Pricing & alternatives →](https://appstackbuilder.com/tools/peerpush)[Visit site ↗](https://www.google.com/search?q=PeerPush%20signup) ![Product Hunt logo](https://appstackbuilder.com/producthunt.svg) #### [Product Hunt](https://appstackbuilder.com/tools/producthunt) Free tier available The go-to platform to launch and discover new tech products. [Pricing & alternatives →](https://appstackbuilder.com/tools/producthunt)[Visit site ↗](https://www.google.com/search?q=Product%20Hunt%20signup) ![SaaSworthy logo](https://www.google.com/s2/favicons?domain=saasworthy.com&sz=128) #### [SaaSworthy](https://appstackbuilder.com/tools/saasworthy) Free tier available A B2B software discovery and comparison platform focused on SaaS buyers. [Pricing & alternatives →](https://appstackbuilder.com/tools/saasworthy)[Visit site ↗](https://www.google.com/search?q=SaaSworthy%20signup) ![SideProjectors logo](https://www.google.com/s2/favicons?domain=sideprojectors.com&sz=128) #### [SideProjectors](https://appstackbuilder.com/tools/sideprojectors) Free tier available A marketplace to sell, buy, and promote side projects and digital products. [Pricing & alternatives →](https://appstackbuilder.com/tools/sideprojectors)[Visit site ↗](https://www.google.com/search?q=SideProjectors%20signup) ![TinyLaunch logo](https://appstackbuilder.com/tinylaunch.svg) #### [TinyLaunch](https://appstackbuilder.com/tools/tinylaunch) Free tier available Weekly product launch competition for indie makers — top 3 products win a badge and a high-authority dofollow backlink (DR 62). [Pricing & alternatives →](https://appstackbuilder.com/tools/tinylaunch)[Visit site ↗](https://www.google.com/search?q=TinyLaunch%20signup) ![Uneed logo](https://appstackbuilder.com/uneed.svg) #### [Uneed](https://appstackbuilder.com/tools/uneed) Free tier available A curated launch platform to showcase new products and gain traffic with SEO backlinks. [Pricing & alternatives →](https://appstackbuilder.com/tools/uneed)[Visit site ↗](https://www.google.com/search?q=Uneed%20signup) ### Free Project Management Tools(6 free tools) ![Asana logo](https://appstackbuilder.com/asana.svg) #### [Asana](https://appstackbuilder.com/tools/asana) Free tier available Work management platform for teams to plan, organize, and execute projects. [Pricing & alternatives →](https://appstackbuilder.com/tools/asana)[Visit site ↗](https://www.google.com/search?q=Asana%20signup) ![ClickUp logo](https://appstackbuilder.com/clickup.svg) #### [ClickUp](https://appstackbuilder.com/tools/clickup) Free tier available All-in-one productivity platform replacing multiple apps with one unified workspace. [Pricing & alternatives →](https://appstackbuilder.com/tools/clickup)[Visit site ↗](https://www.google.com/search?q=ClickUp%20signup) ![Jira logo](https://appstackbuilder.com/jira.svg) #### [Jira](https://appstackbuilder.com/tools/jira) Free tier available Industry-standard project management and issue tracking for software development teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/jira)[Visit site ↗](https://www.google.com/search?q=Jira%20signup) ![Linear logo](https://appstackbuilder.com/linear.svg) #### [Linear](https://appstackbuilder.com/tools/linear) Free tier available Fast issue tracking and project management tool built for modern software teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/linear)[Visit site ↗](https://www.google.com/search?q=Linear%20signup) ![Notion logo](https://appstackbuilder.com/notion.svg) #### [Notion](https://appstackbuilder.com/tools/notion) Free tier available All-in-one workspace for notes, docs, wikis, and project management with powerful databases. [Pricing & alternatives →](https://appstackbuilder.com/tools/notion)[Visit site ↗](https://www.google.com/search?q=Notion%20signup) ![Trello logo](https://appstackbuilder.com/trello.svg) #### [Trello](https://appstackbuilder.com/tools/trello) Free tier available Visual Kanban-style project management tool for organizing tasks and workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/trello)[Visit site ↗](https://www.google.com/search?q=Trello%20signup) ### Free Sales & Marketing Tools(4 free tools) ![Apollo.io logo](https://appstackbuilder.com/apollo.svg) #### [Apollo.io](https://appstackbuilder.com/tools/apollo) Free tier available B2B sales intelligence and engagement platform with 275M+ contacts, prospecting, and outreach automation. [Pricing & alternatives →](https://appstackbuilder.com/tools/apollo)[Visit site ↗](https://www.google.com/search?q=Apollo.io%20signup) ![Brevo logo](https://appstackbuilder.com/brevo.svg) #### [Brevo](https://appstackbuilder.com/tools/brevo) Free tier available Email & SMS marketing platform with transactional email, automation, and CRM — all at low cost. [Pricing & alternatives →](https://appstackbuilder.com/tools/brevo)[Visit site ↗](https://www.google.com/search?q=Brevo%20signup) ![HubSpot CRM logo](https://appstackbuilder.com/hubspot.svg) #### [HubSpot CRM](https://appstackbuilder.com/tools/hubspot) Free tier available All-in-one CRM platform covering marketing, sales, and customer service with a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/hubspot)[Visit site ↗](https://www.google.com/search?q=HubSpot%20CRM%20signup) ![Mailchimp logo](https://appstackbuilder.com/mailchimp.svg) #### [Mailchimp](https://appstackbuilder.com/tools/mailchimp) Free tier available The world's most popular email marketing platform with drag-and-drop campaigns, automations, and audience insights. [Pricing & alternatives →](https://appstackbuilder.com/tools/mailchimp)[Visit site ↗](https://mailchimp.com/) ### Free Scheduling & Calendars Tools(3 free tools) ![Cal.com logo](https://www.google.com/s2/favicons?domain=cal.com&sz=128) #### [Cal.com](https://appstackbuilder.com/tools/cal-com) Free tier available Open-source scheduling infrastructure — a self-hostable Calendly alternative with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/cal-com)[Visit site ↗](https://www.google.com/search?q=Cal.com%20signup) ![Calendly logo](https://www.google.com/s2/favicons?domain=calendly.com&sz=128) #### [Calendly](https://appstackbuilder.com/tools/calendly) Free tier available The most popular scheduling tool — share a link, let people book, and sync with your calendar automatically. [Pricing & alternatives →](https://appstackbuilder.com/tools/calendly)[Visit site ↗](https://www.google.com/search?q=Calendly%20signup) ![TidyCal logo](https://www.google.com/s2/favicons?domain=tidycal.com&sz=128) #### [TidyCal](https://appstackbuilder.com/tools/tidycal) Free tier available Affordable Calendly alternative with a solid free tier and a low-cost lifetime deal. [Pricing & alternatives →](https://appstackbuilder.com/tools/tidycal)[Visit site ↗](https://www.google.com/search?q=TidyCal%20signup) ### Free Search Tools(6 free tools) ![Algolia logo](https://www.google.com/s2/favicons?domain=algolia.com&sz=128) #### [Algolia](https://appstackbuilder.com/tools/algolia) Free tier available Hosted search API for fast, relevant search experiences. [Pricing & alternatives →](https://appstackbuilder.com/tools/algolia)[Visit site ↗](https://www.google.com/search?q=Algolia%20signup) ![Elasticsearch logo](https://www.google.com/s2/favicons?domain=elastic.co&sz=128) #### [Elasticsearch](https://appstackbuilder.com/tools/elasticsearch) Free tier available The most widely used search and analytics engine — full-text search, vectors, and observability at scale. [Pricing & alternatives →](https://appstackbuilder.com/tools/elasticsearch)[Visit site ↗](https://www.google.com/search?q=Elasticsearch%20signup) ![Meilisearch logo](https://www.google.com/s2/favicons?domain=meilisearch.com&sz=128) #### [Meilisearch](https://appstackbuilder.com/tools/meilisearch) Free tier available Open-source search engine with instant, typo-tolerant search. [Pricing & alternatives →](https://appstackbuilder.com/tools/meilisearch)[Visit site ↗](https://www.google.com/search?q=Meilisearch%20signup) ![OpenSearch logo](https://www.google.com/s2/favicons?domain=opensearch.org&sz=128) #### [OpenSearch](https://appstackbuilder.com/tools/opensearch) Free tier available Apache-2.0 open-source search and analytics suite (Elasticsearch fork) backed by AWS — fully free to self-host. [Pricing & alternatives →](https://appstackbuilder.com/tools/opensearch)[Visit site ↗](https://www.google.com/search?q=OpenSearch%20signup) ![Orama logo](https://www.google.com/s2/favicons?domain=orama.com&sz=128) #### [Orama](https://appstackbuilder.com/tools/orama) Free tier available Tiny, fast open-source full-text and vector search engine that runs anywhere — browser, edge, or server. [Pricing & alternatives →](https://appstackbuilder.com/tools/orama)[Visit site ↗](https://www.google.com/search?q=Orama%20signup) ![Typesense logo](https://www.google.com/s2/favicons?domain=typesense.org&sz=128) #### [Typesense](https://appstackbuilder.com/tools/typesense) Free tier available Fast, typo-tolerant open-source search engine alternative to Algolia. [Pricing & alternatives →](https://appstackbuilder.com/tools/typesense)[Visit site ↗](https://www.google.com/search?q=Typesense%20signup) ### Free Security & Passwords Tools(1 free tool) ![Infisical logo](https://appstackbuilder.com/logos/infisical.ico) #### [Infisical](https://appstackbuilder.com/tools/infisical) Free tier available Open-source secrets management and internal PKI. [Pricing & alternatives →](https://appstackbuilder.com/tools/infisical)[Visit site ↗](https://www.google.com/search?q=Infisical%20signup) ### Free SEO Tools Tools(1 free tool) ![OpenSEO logo](https://appstackbuilder.com/logos/openseo.png) #### [OpenSEO](https://appstackbuilder.com/tools/openseo) Free tier available Open-source, MCP-native SEO suite you can self-host or run pay-as-you-go. [Pricing & alternatives →](https://appstackbuilder.com/tools/openseo)[Visit site ↗](https://www.google.com/search?q=OpenSEO%20signup) ### Free Session Replay & Heatmaps Tools(4 free tools) ![Fullstory logo](https://www.google.com/s2/favicons?domain=fullstory.com&sz=128) #### [Fullstory](https://appstackbuilder.com/tools/fullstory) Free tier available Enterprise digital experience analytics: pixel-accurate replay, auto-captured events and funnels. It is quote-based, with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/fullstory)[Visit site ↗](https://www.google.com/search?q=Fullstory%20signup) ![Hotjar logo](https://www.google.com/s2/favicons?domain=hotjar.com&sz=128) #### [Hotjar](https://appstackbuilder.com/tools/hotjar) Free tier available The best-known heatmap and session recording tool, now sold as part of Contentsquare. Growth starts at $49/month for 7,000 sessions. [Pricing & alternatives →](https://appstackbuilder.com/tools/hotjar)[Visit site ↗](https://www.google.com/search?q=Hotjar%20signup) ![Microsoft Clarity logo](https://www.google.com/s2/favicons?domain=clarity.microsoft.com&sz=128) #### [Microsoft Clarity](https://appstackbuilder.com/tools/microsoft-clarity) Free tier available Free session recordings and heatmaps from Microsoft, with no traffic limits, no sampling and no paid tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/microsoft-clarity)[Visit site ↗](https://www.google.com/search?q=Microsoft%20Clarity%20signup) ![Mouseflow logo](https://www.google.com/s2/favicons?domain=mouseflow.com&sz=128) #### [Mouseflow](https://appstackbuilder.com/tools/mouseflow) Free tier available Session replay, heatmaps, funnels and form analytics on straightforward published tiers, with unlimited seats from $25/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/mouseflow)[Visit site ↗](https://www.google.com/search?q=Mouseflow%20signup) ### Free Social Media Management Tools(3 free tools) ![Autoadify logo](https://www.google.com/s2/favicons?domain=autoadify.com&sz=128) #### [Autoadify](https://appstackbuilder.com/tools/autoadify) Free tier available Social media management with AI Workflows, an AI Agent across 20 tools and an AI Studio of 70+ text, image, video and audio models, publishing to 10+ platforms. [Pricing & alternatives →](https://appstackbuilder.com/tools/autoadify)[Visit site ↗](https://www.google.com/search?q=Autoadify%20signup) ![Buffer logo](https://appstackbuilder.com/logos/buffer.svg) #### [Buffer](https://appstackbuilder.com/tools/buffer) Free tier available Simple social scheduling across every major network. [Pricing & alternatives →](https://appstackbuilder.com/tools/buffer)[Visit site ↗](https://www.google.com/search?q=Buffer%20signup) ![Metricool logo](https://appstackbuilder.com/logos/metricool.png) #### [Metricool](https://appstackbuilder.com/tools/metricool) Free tier available Scheduling, analytics and competitor tracking for many brands at once, with a free plan and an AI assistant. [Pricing & alternatives →](https://appstackbuilder.com/tools/metricool)[Visit site ↗](https://www.google.com/search?q=Metricool%20signup) ### Free Status Pages & Uptime Tools(4 free tools) ![Atlassian Statuspage logo](https://www.google.com/s2/favicons?domain=atlassian.com&sz=128) #### [Atlassian Statuspage](https://appstackbuilder.com/tools/atlassian-statuspage) Free tier available The status page most large SaaS companies use: incident communication and subscriber notifications. It does no monitoring of its own. [Pricing & alternatives →](https://appstackbuilder.com/tools/atlassian-statuspage)[Visit site ↗](https://www.google.com/search?q=Atlassian%20Statuspage%20signup) ![Instatus logo](https://www.google.com/s2/favicons?domain=instatus.com&sz=128) #### [Instatus](https://appstackbuilder.com/tools/instatus) Free tier available A fast, affordable Statuspage alternative with monitoring included. It costs $20/month for a custom domain, but the next tier up is $300. [Pricing & alternatives →](https://appstackbuilder.com/tools/instatus)[Visit site ↗](https://www.google.com/search?q=Instatus%20signup) ![Uptime Kuma logo](https://www.google.com/s2/favicons?domain=uptime.kuma.pet&sz=128) #### [Uptime Kuma](https://appstackbuilder.com/tools/uptime-kuma) Free tier available Self-hosted uptime monitoring and status pages. It is MIT-licensed, has about 92k GitHub stars and supports 90+ notification channels. [Pricing & alternatives →](https://appstackbuilder.com/tools/uptime-kuma)[Visit site ↗](https://www.google.com/search?q=Uptime%20Kuma%20signup) ![UptimeRobot logo](https://www.google.com/s2/favicons?domain=uptimerobot.com&sz=128) #### [UptimeRobot](https://appstackbuilder.com/tools/uptimerobot) Free tier available Uptime monitoring with status pages built in. The free plan has 50 monitors, and paid plans add faster checks from $10/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/uptimerobot)[Visit site ↗](https://www.google.com/search?q=UptimeRobot%20signup) ### Free File Storage Tools(3 free tools) F #### [Filen](https://appstackbuilder.com/tools/filen) Free tier available Zero-knowledge encrypted cloud storage from Germany, with stackable plans and unusually cheap per-terabyte pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/filen)[Visit site ↗](https://www.google.com/search?q=Filen%20signup) K #### [Koofr](https://appstackbuilder.com/tools/koofr) Free tier available European cloud storage that also connects your existing Dropbox, Google Drive and OneDrive accounts into one searchable place. [Pricing & alternatives →](https://appstackbuilder.com/tools/koofr)[Visit site ↗](https://www.google.com/search?q=Koofr%20signup) ![Nextcloud logo](https://appstackbuilder.com/logos/nextcloud.png) #### [Nextcloud](https://appstackbuilder.com/tools/nextcloud) Free tier available Self-hosted file sync and share — Dropbox, Google Docs and Calendar on your own server, with no per-user licence. [Pricing & alternatives →](https://appstackbuilder.com/tools/nextcloud)[Visit site ↗](https://www.google.com/search?q=Nextcloud%20signup) ### Free Terminals & CLI Tools Tools(4 free tools) ![Ghostty logo](https://www.google.com/s2/favicons?domain=ghostty.org&sz=128) #### [Ghostty](https://appstackbuilder.com/tools/ghostty) Free tier available A fast, GPU-accelerated terminal with a fully native UI, from HashiCorp co-founder Mitchell Hashimoto. It is free and MIT-licensed. [Pricing & alternatives →](https://appstackbuilder.com/tools/ghostty)[Visit site ↗](https://www.google.com/search?q=Ghostty%20signup) ![iTerm2 logo](https://www.google.com/s2/favicons?domain=iterm2.com&sz=128) #### [iTerm2](https://appstackbuilder.com/tools/iterm2) Free tier available The long-standing default terminal on macOS for developers. It is free, GPL-licensed and has deep tmux integration. [Pricing & alternatives →](https://appstackbuilder.com/tools/iterm2)[Visit site ↗](https://www.google.com/search?q=iTerm2%20signup) ![Warp logo](https://www.google.com/s2/favicons?domain=warp.dev&sz=128) #### [Warp](https://appstackbuilder.com/tools/warp) Free tier available A terminal rebuilt around blocks and AI agents. The terminal is free on every plan, and paid plans buy AI credits from $20/month. [Pricing & alternatives →](https://appstackbuilder.com/tools/warp)[Visit site ↗](https://www.google.com/search?q=Warp%20signup) ![Windows Terminal logo](https://www.google.com/s2/favicons?domain=microsoft.com&sz=128) #### [Windows Terminal](https://appstackbuilder.com/tools/windows-terminal) Free tier available Microsoft's open-source, tabbed terminal for PowerShell, Command Prompt and WSL. It is the default on Windows 11 and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/windows-terminal)[Visit site ↗](https://www.google.com/search?q=Windows%20Terminal%20signup) ### Free Testing Tools(5 free tools) ![Checkly logo](https://www.google.com/s2/favicons?domain=checklyhq.com&sz=128) #### [Checkly](https://appstackbuilder.com/tools/checkly) Free tier available Code-first synthetic monitoring and E2E checks using Playwright — monitoring-as-code with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/checkly)[Visit site ↗](https://www.google.com/search?q=Checkly%20signup) ![Cypress logo](https://appstackbuilder.com/cypress.svg) #### [Cypress](https://appstackbuilder.com/tools/cypress) Free tier available JavaScript end-to-end testing framework with time-travel debugging. [Pricing & alternatives →](https://appstackbuilder.com/tools/cypress)[Visit site ↗](https://www.google.com/search?q=Cypress%20signup) ![Jest logo](https://www.google.com/s2/favicons?domain=jestjs.io&sz=128) #### [Jest](https://appstackbuilder.com/tools/jest) Free tier available The most widely used JavaScript testing framework — zero-config, snapshots, and a huge ecosystem. [Pricing & alternatives →](https://appstackbuilder.com/tools/jest)[Visit site ↗](https://www.google.com/search?q=Jest%20signup) ![Playwright logo](https://appstackbuilder.com/playwright.svg) #### [Playwright](https://appstackbuilder.com/tools/playwright) Free tier available Cross-browser end-to-end testing framework by Microsoft. [Pricing & alternatives →](https://appstackbuilder.com/tools/playwright)[Visit site ↗](https://www.google.com/search?q=Playwright%20signup) ![Vitest logo](https://www.google.com/s2/favicons?domain=vitest.dev&sz=128) #### [Vitest](https://appstackbuilder.com/tools/vitest) Free tier available Blazing-fast, Vite-native unit test framework with a Jest-compatible API — the default for modern JS/TS projects. [Pricing & alternatives →](https://appstackbuilder.com/tools/vitest)[Visit site ↗](https://www.google.com/search?q=Vitest%20signup) ### Free UI/UX Tools(3 free tools) ![Figma logo](https://appstackbuilder.com/figma.svg) #### [Figma](https://appstackbuilder.com/tools/figma) Free tier available Collaborative ui-ux design platform for designing, prototyping, and handing off products in real time. [Pricing & alternatives →](https://appstackbuilder.com/tools/figma)[Visit site ↗](https://www.figma.com) ![Penpot logo](https://appstackbuilder.com/penpot.svg) #### [Penpot](https://appstackbuilder.com/tools/penpot) Free tier available Open-source design and prototyping platform with collaborative ui-ux tooling for teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/penpot)[Visit site ↗](https://www.google.com/search?q=Penpot%20signup) ![Uizard logo](https://appstackbuilder.com/uizard.svg) #### [Uizard](https://appstackbuilder.com/tools/uizard) Free tier available AI-powered ui-ux design tool that turns sketches and prompts into interactive screens and prototypes. [Pricing & alternatives →](https://appstackbuilder.com/tools/uizard)[Visit site ↗](https://www.google.com/search?q=Uizard%20signup) ### Free Usage-Based Billing & Metering Tools(2 free tools) ![Flexprice logo](https://www.google.com/s2/favicons?domain=flexprice.io&sz=128) #### [Flexprice](https://appstackbuilder.com/tools/flexprice) Free tier available Open-source billing for AI and API products: usage, credits and hybrid pricing with published prices and a free cloud tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/flexprice)[Visit site ↗](https://www.google.com/search?q=Flexprice%20signup) ![Lago logo](https://www.google.com/s2/favicons?domain=getlago.com&sz=128) #### [Lago](https://appstackbuilder.com/tools/lago) Free tier available Open-source usage-based billing: meter events, price them with any model, and generate invoices. Self-host free or use Lago Cloud. [Pricing & alternatives →](https://appstackbuilder.com/tools/lago)[Visit site ↗](https://www.google.com/search?q=Lago%20signup) ### Free Vector Database / RAG Tools(6 free tools) ![Chroma logo](https://www.google.com/s2/favicons?domain=trychroma.com&sz=128) #### [Chroma](https://appstackbuilder.com/tools/chroma) Free tier available Developer-friendly open-source embedding database — the easiest way to add vector search to a prototype. [Pricing & alternatives →](https://appstackbuilder.com/tools/chroma)[Visit site ↗](https://www.google.com/search?q=Chroma%20signup) ![LanceDB logo](https://www.google.com/s2/favicons?domain=lancedb.com&sz=128) #### [LanceDB](https://appstackbuilder.com/tools/lancedb) Free tier available Serverless, embedded vector database that runs inside your app process — no infrastructure to manage. [Pricing & alternatives →](https://appstackbuilder.com/tools/lancedb)[Visit site ↗](https://www.google.com/search?q=LanceDB%20signup) ![Milvus logo](https://www.google.com/s2/favicons?domain=milvus.io&sz=128) #### [Milvus](https://appstackbuilder.com/tools/milvus) Free tier available Open-source vector database built for billion-scale embeddings, with managed Zilliz Cloud option. [Pricing & alternatives →](https://appstackbuilder.com/tools/milvus)[Visit site ↗](https://www.google.com/search?q=Milvus%20signup) ![Pinecone logo](https://www.google.com/s2/favicons?domain=pinecone.io&sz=128) #### [Pinecone](https://appstackbuilder.com/tools/pinecone) Free tier available Fully managed serverless vector database for AI search and RAG, with hybrid search and per-tenant namespaces. [Pricing & alternatives →](https://appstackbuilder.com/tools/pinecone)[Visit site ↗](https://www.pinecone.io/start/) ![Qdrant logo](https://www.google.com/s2/favicons?domain=qdrant.tech&sz=128) #### [Qdrant](https://appstackbuilder.com/tools/qdrant) Free tier available High-performance open-source vector search engine with rich payload filtering — great for agent memory and RAG. [Pricing & alternatives →](https://appstackbuilder.com/tools/qdrant)[Visit site ↗](https://qdrant.tech/documentation) ![Weaviate logo](https://www.google.com/s2/favicons?domain=weaviate.io&sz=128) #### [Weaviate](https://appstackbuilder.com/tools/weaviate) Free tier available Open-source vector database with built-in vectorization modules and hybrid search for RAG applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/weaviate)[Visit site ↗](https://weaviate.io) ### Free Version Control & Code Review Tools(5 free tools) ![Bitbucket logo](https://appstackbuilder.com/logos/bitbucket.png) #### [Bitbucket](https://appstackbuilder.com/tools/bitbucket) Free tier available Atlassian's Git host — cheapest per seat of the big three, and the one that plugs straight into Jira. [Pricing & alternatives →](https://appstackbuilder.com/tools/bitbucket)[Visit site ↗](https://www.google.com/search?q=Bitbucket%20signup) ![Gitea logo](https://appstackbuilder.com/logos/gitea.png) #### [Gitea](https://appstackbuilder.com/tools/gitea) Free tier available A lightweight self-hosted Git service that runs from a single binary — the whole forge on hardware you control. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitea)[Visit site ↗](https://www.google.com/search?q=Gitea%20signup) ![GitHub logo](https://appstackbuilder.com/logos/github.ico) #### [GitHub](https://appstackbuilder.com/tools/github) Free tier available Where the code, the pull requests and most of the people who might contribute to them already are. [Pricing & alternatives →](https://appstackbuilder.com/tools/github)[Visit site ↗](https://www.google.com/search?q=GitHub%20signup) ![GitLab logo](https://appstackbuilder.com/logos/gitlab.png) #### [GitLab](https://appstackbuilder.com/tools/gitlab) Free tier available One application for repos, CI/CD, security scanning and releases — and the only major host you can also run yourself. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitlab)[Visit site ↗](https://www.google.com/search?q=GitLab%20signup) ![Graphite logo](https://appstackbuilder.com/logos/graphite.png) #### [Graphite](https://appstackbuilder.com/tools/graphite) Free tier available Stacked pull requests and AI code review on top of GitHub — for teams where review latency is the bottleneck. [Pricing & alternatives →](https://appstackbuilder.com/tools/graphite)[Visit site ↗](https://www.google.com/search?q=Graphite%20signup) ### Free Video & Screen Recording Tools(4 free tools) ![Loom logo](https://www.google.com/s2/favicons?domain=loom.com&sz=128) #### [Loom](https://appstackbuilder.com/tools/loom) Free tier available Async video messaging — record your screen and camera to explain things faster than meetings. Free tier available. [Pricing & alternatives →](https://appstackbuilder.com/tools/loom)[Visit site ↗](https://www.google.com/search?q=Loom%20signup) ![Tella logo](https://www.google.com/s2/favicons?domain=tella.tv&sz=128) #### [Tella](https://appstackbuilder.com/tools/tella) Free tier available Screen + camera recorder with built-in editing that makes polished demo and async videos in minutes. [Pricing & alternatives →](https://appstackbuilder.com/tools/tella)[Visit site ↗](https://www.google.com/search?q=Tella%20signup) ![Vidyard logo](https://www.google.com/s2/favicons?domain=vidyard.com&sz=128) #### [Vidyard](https://appstackbuilder.com/tools/vidyard) Free tier available Async video messaging built for sales and marketing, with viewer analytics and CRM integrations. [Pricing & alternatives →](https://appstackbuilder.com/tools/vidyard)[Visit site ↗](https://www.google.com/search?q=Vidyard%20signup) ![Zight logo](https://www.google.com/s2/favicons?domain=zight.com&sz=128) #### [Zight](https://appstackbuilder.com/tools/zight) Free tier available All-in-one screen recording, GIFs, and screenshots with instant shareable links (formerly CloudApp). [Pricing & alternatives →](https://appstackbuilder.com/tools/zight)[Visit site ↗](https://www.google.com/search?q=Zight%20signup) ### Free Video Infrastructure Tools(3 free tools) a #### [api.video](https://appstackbuilder.com/tools/api-video) Free tier available Video API with free unlimited encoding, priced per minute hosted and per minute delivered, plus live streaming and analytics. [Pricing & alternatives →](https://appstackbuilder.com/tools/api-video)[Visit site ↗](https://www.google.com/search?q=api.video%20signup) M #### [Mux](https://appstackbuilder.com/tools/mux) Free tier available Video API for developers: upload, encode, store and stream adaptive video with per-title encoding and real-time viewer analytics. [Pricing & alternatives →](https://appstackbuilder.com/tools/mux)[Visit site ↗](https://www.google.com/search?q=Mux%20signup) W #### [Wistia](https://appstackbuilder.com/tools/wistia) Free tier available Video hosting built for marketing teams: player customisation, lead capture forms, heatmaps and CRM integrations. [Pricing & alternatives →](https://appstackbuilder.com/tools/wistia)[Visit site ↗](https://www.google.com/search?q=Wistia%20signup) ### Free AI Voice Agents Tools(1 free tool) ![LiveKit logo](https://www.google.com/s2/favicons?domain=livekit.io&sz=128) #### [LiveKit](https://appstackbuilder.com/tools/livekit) Free tier available Open-source real-time media server and Agents framework for building voice AI. Self-host free, or use LiveKit Cloud. [Pricing & alternatives →](https://appstackbuilder.com/tools/livekit)[Visit site ↗](https://www.google.com/search?q=LiveKit%20signup) ### Free VPN & Private Networking Tools(4 free tools) ![NetBird logo](https://appstackbuilder.com/logos/netbird.png) #### [NetBird](https://appstackbuilder.com/tools/netbird) Free tier available Open-source WireGuard mesh you can self-host, or buy hosted. [Pricing & alternatives →](https://appstackbuilder.com/tools/netbird)[Visit site ↗](https://www.google.com/search?q=NetBird%20signup) ![Tailscale logo](https://appstackbuilder.com/logos/tailscale.svg) #### [Tailscale](https://appstackbuilder.com/tools/tailscale) Free tier available WireGuard mesh VPN that connects your machines to each other, not to an exit country. [Pricing & alternatives →](https://appstackbuilder.com/tools/tailscale)[Visit site ↗](https://www.google.com/search?q=Tailscale%20signup) ![Twingate logo](https://appstackbuilder.com/logos/twingate.png) #### [Twingate](https://appstackbuilder.com/tools/twingate) Free tier available Zero-trust remote access: per-resource permissions rather than a network-wide tunnel. [Pricing & alternatives →](https://appstackbuilder.com/tools/twingate)[Visit site ↗](https://www.google.com/search?q=Twingate%20signup) ![WireGuard logo](https://appstackbuilder.com/logos/wireguard.png) #### [WireGuard](https://appstackbuilder.com/tools/wireguard) Free tier available The protocol underneath most of this category — run it yourself on a VPS. [Pricing & alternatives →](https://appstackbuilder.com/tools/wireguard)[Visit site ↗](https://www.google.com/search?q=WireGuard%20signup) ### Free Web Scraping & Data Extraction Tools(4 free tools) A #### [Apify](https://appstackbuilder.com/tools/apify) Free tier available Marketplace and runtime for 'Actors' — thousands of prebuilt scrapers you can rent, plus a platform to deploy your own. [Pricing & alternatives →](https://appstackbuilder.com/tools/apify)[Visit site ↗](https://www.google.com/search?q=Apify%20signup) B #### [Bright Data Web Scraper API](https://appstackbuilder.com/tools/bright-data) Free tier available Scraper API over the largest commercial proxy network, priced per 1,000 records delivered rather than per request. [Pricing & alternatives →](https://appstackbuilder.com/tools/bright-data)[Visit site ↗](https://www.google.com/search?q=Bright%20Data%20Web%20Scraper%20API%20signup) F #### [Firecrawl](https://appstackbuilder.com/tools/firecrawl) Free tier available Turns any site into LLM-ready markdown with one API call — crawl, scrape, search and extract, with JS rendering and proxies handled for you. [Pricing & alternatives →](https://appstackbuilder.com/tools/firecrawl)[Visit site ↗](https://www.google.com/search?q=Firecrawl%20signup) O #### [Oxylabs Web Scraper API](https://appstackbuilder.com/tools/oxylabs) Free tier available Enterprise-grade scraping API on top of one of the largest residential proxy networks, billed per 1,000 successful results. [Pricing & alternatives →](https://appstackbuilder.com/tools/oxylabs)[Visit site ↗](https://www.google.com/search?q=Oxylabs%20Web%20Scraper%20API%20signup) ### Free Website Builders Tools(1 free tool) ![Carrd logo](https://appstackbuilder.com/logos/carrd.ico) #### [Carrd](https://appstackbuilder.com/tools/carrd) Free tier available One-page sites for $19 a year. [Pricing & alternatives →](https://appstackbuilder.com/tools/carrd)[Visit site ↗](https://carrd.co/signup) ## Related Resources [Prebuilt Tech StacksCurated stacks for every budget and use case](https://appstackbuilder.com/stacks)[Tool AlternativesFind alternatives to any developer tool](https://appstackbuilder.com/tool-alternatives)[Build SaaS for FreeComplete guide to free tier tools in 2026](https://appstackbuilder.com/blog/build-saas-free-free-tier-tools-2026)