Top TEST GitHub Repositories & Tools (2026)

JavaScript Testing utilities for React

Simple JavaScript testing framework for browsers and node.js

APIs for browser automation, testing, and bypassing bot-detection. Makes Chromium an anti-detect browser for handling CAPTCHAs. Supports MCP.

Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL).

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

Light, flexible and extensible ASGI framework | Built to scale

A library for setting up Ruby objects as test data.

GoCD - Continuous Delivery server main repository

✅ The programmer-friendly testing framework for Java and the JVM

Autonomous Hacking Agent for Red Team

Testcontainers for Go is a Go package that makes it simple to create and clean up container-based dependencies for automated integration/smoke tests. The clean, easy-to-use API enables developers to programmatically define containers that should be run as part of a test and clean up those resources when the test is done.

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

Full-stack testing PHP framework

A cross-platform Codeforces desktop companion for personalized practice, contest review, training plans, and algorithm templates.

Supercharged End 2 End Testing Framework for NodeJS

:cake: Cake (C# Make) is a cross platform build automation system.

🔮 An easy-to-use JavaScript unit testing framework.

Test infrastructure for the Kubernetes project.

A node.js library for testing modern web applications

Catch API bugs before your users do