What is App Stack Builder?

App Stack Builder is a free AI-powered tool that helps founders and developers choose the right tech stack for their projects based on budget, app type, team size, and skill level.

What is the best tech stack for SaaS in 2026?

The best tech stack for SaaS in 2026 typically includes Next.js 16 for frontend, Supabase for database and auth, Vercel for hosting, Stripe for payments, and PostHog for analytics. App Stack Builder can generate a personalized recommendation based on your specific budget and requirements.

Is App Stack Builder free to use?

Yes, App Stack Builder is completely free to use. You can generate unlimited tech stack recommendations without any cost.

What types of apps can I build with the recommended stacks?

App Stack Builder supports various app types including SaaS applications, web apps, mobile apps, e-commerce stores, internal tools, and AI/ML products.

How much does a SaaS tech stack cost per month?

A modern SaaS tech stack can cost anywhere from $0-50/month for bootstrapped startups using free tiers, $100-300/month for growth-stage startups, to $500+/month for enterprise-ready infrastructure. App Stack Builder helps you find the best tools within your specific budget.

What is the best tech stack for solo founders?

For solo founders, we recommend Next.js + Vercel (free), Supabase (free tier), Supabase Auth (free), Stripe (pay as you go), and Plausible or PostHog for analytics. This stack can run your entire SaaS for under $50/month.

Can I export my tech stack recommendations?

Yes, you can export your tech stack recommendations as a PDF document or copy them to your clipboard. You can also share a link to your stack with others.

Browser Infrastructure for AI AgentsFree tier

Browserless: Pricing, Features & Alternatives

Browserless is for teams that already wrote the Playwright script and just do not want to run the browser fleet. You point your existing code at their WebSocket endpoint and keep all of it. Billing is in 'units' of 30 seconds of browser time against a flat tier. Its BrowserQL query language is the newer, more scraping-shaped interface on top of the same infrastructure.

Browserless Pricing Plans (2026)

Plan	Price	Highlights
Free	$0	1,000 units / month · 2 concurrent browsers · 2 min session limit
PrototypingPopular	$25 / month billed annually ($300 / yr)	20,000 units / month · 10 concurrent browsers · 15 min sessions
Starter	$140 / month billed annually ($1,680 / yr)	180,000 units / month · 40 concurrent browsers · 30 min sessions
Scale	$350 / month billed annually ($4,200 / yr)	500,000 units / month · 100 concurrent browsers · 60 min sessions
Enterprise	Custom	Private deployments · Licensed self-hosting · GPU infrastructure

Pricing summary: Free · paid from $25/mo. Always confirm current pricing on the official site.

Key Browserless Features

20,000 units / month
10 concurrent browsers
15 min sessions

Pros

+Keep your existing Puppeteer/Playwright code
+Stealth and CAPTCHA solving included
+Session recording and debugging tools
+No browser fleet to patch

Cons

−Annual billing on every paid tier
−Unit accounting is opaque at first
−Self-hosting is enterprise-licensed only

Best Browserless Alternatives

Compare all

Steel

Free · then usage-based

Browserbase

From $20/mo

Browser Use

Free · then usage-based

Browserless Compared

Browserless vs Browserbase Browserless vs Browser Use Browserless vs Steel

In-depth guideBest Browser Infrastructure for AI Agents 2026: Kitesurf vs Browserbase vs Browser UseCloudflare shipped a browser with no Chromium in it. Kitesurf, Browserbase, Browser Use, Steel, Stagehand and Firecrawl compared on cost per browser hour, session persistence, and anti-bot reality.

Browserless FAQ

What is Browserless used for?⌄

Browserless is a browser infrastructure for ai agents tool. Hosted headless Chrome you connect Puppeteer or Playwright to over WebSocket, with stealth, proxies and CAPTCHA solving built in.

Is Browserless free?⌄

Yes — Browserless has a free tier you can start with, and paid plans for more usage and features.

How much does Browserless cost?⌄

Browserless offers a free tier, with paid plans starting at $25/month. Some plans are usage-based (pay-as-you-go).

What are the best Browserless alternatives?⌄

Popular Browserless alternatives include Steel, Browserbase, Browser Use. Compare pricing and features on our Browserless alternatives page.

Not sure if Browserless fits your stack?

Get a free, AI-powered tech stack tailored to your budget, app type, and team size — including the best browser infrastructure for ai agents pick for you.

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