Best Performance Testing Software for Freelancers

Parasoft C/C++test provides runtime analysis capability to address the reliability and stability side of performance concerns.

Obkio is a network monitoring software, observability and diagnostics platform that gives IT teams, MSPs, and network engineers full visibility into network performance, from the office to the cloud. As a leading Network Performance Monitoring (NPM) tool, Obkio deploys lightweight monitoring agents at any location to continuously track latency, jitter, packet loss, and bandwidth, and run Visual Traceroutes across the entire network path. Obkio supports SD-WAN, MPLS, VoIP/UC, and multi-site network monitoring, plus application performance monitoring (APM) with HTTP, Web, and Teams tests. With Obkio Insight, diagnostics are automated, helping teams pinpoint whether issues originate in-house, with an ISP, or a third-party service, and hold providers accountable with real data. Fast to deploy with no hardware required, Obkio turns network data into clear diagnostics and insights. Helping teams reduce downtime, validate SLAs, and prove the performance they're paying for.

Apptim empowers mobile developers and testers to easily test their apps and analyze their performance to prevent any critical issues from going live. Measure app render times, power consumption, resource usage, capture crashes and more on Android and iOS devices. Get your first test results in less than 5 minutes and compare the performance between multiple app versions. Try Apptim for free today and release with confidence: https://bit.ly/3ert9yQ

ZAPTEST is a leading Free and Enterprise software test automation and RPA tool. Offerings include Computer Vision technology that allows for Cross-Platform digital interface automation for UI, API, Load testing, and RPA in a seamless process. Combine that with our 1SCRIPT methodology, seamless automation, parallel execution, and unlimited licenses– you get an efficient testing suite that generates up to 10X ROI. We promise that if you can perform a procedure via any digital interface (live application or mockup) manually, ZAPTEST can automate this procedure As-Is! With ZAPTEST’s Enterprise Solution subscription program, you receive unlimited licenses across the entire organization. Regardless of whether your automation needs increase, your cost remains fixed. FARM allows ZAPTEST users to manage all of their devices so you can remotely control cross-environments and projects from any location. ZAPTEST uses many practical applications to enhance its software testing software capabilities

SmartBear QMetry is a testing system of record for AI workflows that enables teams to deliver software with measurable confidence. It features agentic & genAI-powered testing capabilities to centralize test cases and execution results across manual, automated, and agentic workflows. Teams using QMetry have access to the SmartBear MCP server so they can incorporate QA work into existing AI worfklows without disruption. Built-in test automation enables teams to quickly build and execute complex test suites seamlessly. Customizable reporting and dashboards provide complete visibility and traceability so testing teams can better understand coverage, identify risk, and confirm release readiness. Customers using QMetry benefit from trustworthy, well-governed, and data-driven delivery that keeps pace with modern software development at scale.

Loadster is a load testing, stress testing, and monitoring platform for websites, web applications, and APIs. Create realistic test scripts and play them back with thousands of virtual users to find bottlenecks, improve performance, and prevent crashes. You can record load test scripts right in your browser with the Loadster Recorder extension for Chrome or Firefox. Just step through your site like a real user would while Loadster records every step into a script. After recording, play your script back in real time, making edits as necessary. It's simple to add custom validation and capture server responses to reuse later in the script. Configure your test scenario with groups of bots in regions of your choosing, running your scripts, ramping up the load. Load test your site to prepare for your next traffic spike, and monitor it continuously to detect problems quickly. Your site has a breaking point. Find it before your users do!

LoadView by Dotcom-Monitor is a cloud-based load testing platform used by DevOps and performance testing engineers for load testing websites, web applications, and APIs from real browsers. Emulate real traffic from around the world to uncover bottleneck and performance issues and improve the user experience. Leveraging Amazon Web Services (AWS) and Azure Cloud Services, LoadView manages the cloud network so you can focus exclusively on designing and executing your load tests.

RadView WebLOAD is a leading enterprise AI-based performance and load testing solution for testing web, mobile, and packaged applications. It supports over 150 protocols and technologies, including all common front-end frameworks, APIs, message queues, and databases, enabling load testing across any enterprise technology stack. RadView WebLOAD.AI, is available as SaaS and can also be self-hosted on-premise or in the cloud. It is highly scalable and can simulate hundreds of thousands of concurrent users from different locations and cloud platforms. With its smart and easy generation of reliable tests and its powerful AI-based analytics capabilities, RadView WebLOAD makes performance teams highly successful in detecting and quickly resolving performance issues even for the most complex environments. This makes RadView WebLOAD the solution of choice for many performance experts. RadView WebLOAD has built-in integration into most of the popular Testing, CI/CD and APM tools.

Empirix is a global solution provider of service assurance automation that protects brand quality by offering cloud-native, open, and flexible, by design best-in-class test automation and network visibility software. Service providers, enterprises and equipment manufacturers all over the world recognize Empirix as the best – the most thorough and reliable – vendor of IP communications service quality in the market, and they readily accepted Empirix results as a credible standard for resolving inter-vendor problems.

Gatling is a high-performance load testing platform built to help modern teams uncover bottlenecks before they impact users. It enables organizations to simulate massive, real-world traffic so they can validate reliability across web apps, APIs, cloud infrastructure, and even AI workloads. With powerful dashboards and trend analysis, Gatling provides instant visibility into performance issues and long-term patterns. The platform centralizes test creation, execution, and reporting, ensuring teams standardize their approach across all environments. DevOps and engineering teams can embed Gatling directly into CI/CD pipelines to automate performance checks at every stage. Designed for scalability and efficiency, Gatling empowers companies to ship confidently—even during peak traffic events.

The best developer experience for load testing. Open source load testing tool and SaaS for engineering teams. The k6 API and CLI are easy-to-use, flexible and powerful. Write tests in Javascript that mimic real-world scenarios. Automate your tests to ensure that your infrastructure and application remain performant. Configure SLOs in your k6 script to test the health of your services. Create tests faster with our browser recorder and converters (JMeter, Postman, Swagger). Extensive documentation, awesome community and first class support. No XML. No DSL. Just familiar scripting with ES6 JS.

Open Architecture for Building and Running Load Tests. Need to quickly load test a home page, a single URL within your site, or even a mobile API endpoint. We allow you to compose simple tests and then scale them to tens of thousands of users within a few minutes. Apache JMeter, Gatling, Selenium, and WebDriver are more than just open source tools we enable in cloud load testing, they are vibrant communities with deep knowledge and products built on what real users need. Open load tests give you the flexibility of writing load tests in languages and utilities you use every day. You can write custom tests in Python, PHP or Node.js. We provide an open, easy, and cheap way for load testing. We achieve this with an open architecture which provides tuning and control to setting up the cloud load agents.

The ReadyAPI platform accelerates functional, security, and load testing of RESTful, SOAP, GraphQL and other web services right inside your CI/CD pipeline. ReadyAPI allows teams to create, manage, and execute automated functional, security, and performance tests in one centralized interface - accelerating API quality for Agile and DevOps software teams. Teams can get started by importing API definitions like OAS (Swagger) or WSDLs, testing and recording live API traffic, or virtualizing web services to remove pipeline dependencies. Create comprehensive, data-driven functional API tests without the hassle of maintaining scripts. Generate load, stress, and spike tests to validate whether your API can handle real-world traffic conditions. Secure your vulnerable APIs from XSS, malformed XML, SQL injections and more with each deployment. Remove dependencies in your testing pipeline by virtualizing RESTful, SOAP, TCP, JMS, and other web services.

Diagnose web UI and API performance issues with data that’s highly actionable and extremely accurate. Traditional performance testing has always happened in the protocol layer. This results in massive tests that are hard to read, require extensive programming, and take hours, even weeks to set up. Even the results aren’t even indicative of the real world as they test the protocol. No wonder performance testing seemed hard. But it doesn't have to be with LoadNinja. Instead of testing the protocol, test the actual end-user experience across tens of thousands of browsers using our TrueLoad technology, saving you over 60% of effort. No maintenance or setup required to give you the most accurate understanding of performance in the least amount of time possible. Increase test coverage for websites, web apps, and APIs without sacrificing quality. Create complex performance tests without complex correlation.

Kovair integrated test management solution helps to accelerate software testing. The growing variety of applications available in the market—such as hybrid applications, cloud computing, mobile platforms, and DevOps—has made testing increasingly challenging today. Organizations need comprehensive test management tools along with support for continuous testing that will help to deliver quality within a short span of time. Kovair Test Management offers the following salient features that make it a comprehensive solution, capable of adapting to the needs of an organization. Single Web Interface: that integrates Test Management with other lifecycle phases to ensure better Quality. End-to-End Traceability: between multiple tool data for better release predictability. Continuous Testing: through integration with different CI/CD tools.

Curiosity Modeller generates: Clear and complete specifications that reduce costly bug creation. Optimized test cases to catch more defects first time round. Compliant test data for every test, available when testers need it. Rigorous automated tests that can be executed across open source, commercial, or homegrown frameworks. Rapidly build flowcharts using a range of importers and accelerators, and automatically generate optimized test cases, comprehensive automated tests, and complete test data. Automation engineers maintain coded frameworks, exporting actions and objects to Curiosity Modeller. There, anyone can automate using a drag-and-drop approach.

The Complete Automation Platform. Discover the complete automation platform for testing digital applications at scale. The Complete Platform for Testing Digital Applications eureQa is redefining the test automation platform. With support for functional, cross browser/device, mobile & performance testing, and synthetic monitoring in a single enterprise class Cloud platform, eureQa is enabling companies to effectively operate their digital businesses. Powered by Artificial Intelligence (AI) and Machine Learning (ML), the eureQa platform gives companies the tools they need to improve the user experience and overall quality. Enabling Digital Transformation. Digital applications are the future of commerce and enterprise software. eureQa is a modern automation platform powered by Machine Learning and purpose built to accelerate testing of digital applications. Faster Time to Market. Roll out updates and feature changes to your eCommerce apps and enterprise SaaS implementations

Continuous performance testing software to automate API and application load testing. Design code-less performance tests for complex applications. Script performance tests <as:code /> within automated pipelines for API testing. Design, maintain and run performance tests as code and analyze results within continuous integration pipelines using pre-packaged plugins for CI/CD tools and the NeoLoad API. Create test scripts quickly for large, complex applications using a graphical user interface and skip the complexity of hand coding new and updated tests. Define SLAs based on built-in monitoring metrics. Put pressure on the app and compare SLAs to server-level statistics to determine performance. Automate pass/fail triggers based on SLAs. Contributes to root cause analysis. Update test scripts faster with automatic test script updates. Update only the part of the test that’s changed and re-use the rest for easy test maintenance.

Automated testing has come of age with Progress® Telerik® Test Studio. With the industry's fastest test recorder, its patent-pending mixed element find logic makes tests more stable and reliable while keeping test maintenance to a minimum. Test Studio maximizes test coverage ensuring optimal app quality and addresses QA’s top challenges. Testing is a must to meet the delivery cycles of Agile/CI/CD and keep bugs out of final products, but the demand to quickly deliver digital experiences, additional capabilities and improvements puts pressure all around. Meanwhile, most of the automated testing approaches aren’t designed to support QA testers without much coding experience. Simply record your test and use automated playback for an easy and fast way to craft your test and then run that same script to test multiple browsers. Maintenance is greatly reduced with patent-pending element detection, centralized object repository, intelligent suggestions and multi-mechanism element search.

TOP Testing Suite from R Systems is an easy to use, automated test solution for end-to-end testing, evaluation, and validation of telecom services. With TOP Testing Suite, you can rapidly automate telecom protocol or software test plans, reduce regression testing time from days to minutes and enable continuous testing in line with Agile and DevOps practices. R Systems’ TOP Testing Suite uses an intuitive web-based graphical user interface (GUI) to enable you to efficiently define and manage a broad range of test plans, aggregate the results, and view the reports. Our comprehensive suite of testing tools is a modular, multi-protocol solution based on the JMeter platform, with open-source elements and custom developed R Systems plug-ins.