Top TESTING GitHub Repositories & Tools (2026)

This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

PHP version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project

Run your tests with randomization, splitting, and parallelization for beautiful tests.

The Complete AI Development Toolkit for Claude Code. 106 skills, 36 agents, 171 hooks. Install `ork` for stable (v9.x), or `ork-alpha` for the v10 line, which ships daily.

Netlify Build (node process) runs the build command, Build Plugins and bundles Netlify Functions. Can be run in Buildbot or locally using Netlify CLI

Kotlin testing made easy, everywhere.

Kane CLI by TestMu AI (Formerly LambdaTest)

Hunt every Endpoint in your code, expose Shadow APIs, map the Attack Surface.

OWASP Mutillidae II is a free, open-source, deliberately vulnerable web application providing a target for web-security training. This is an easy-to-use web hacking environment designed for labs, security enthusiasts, classrooms, CTF, and vulnerability assessment tool targets.

Hardware testing for the software world. Real or virtual, local or remote, human, automated or agentic.

NUnit 3.0 Visual Studio test adapter for use under VS 2012 or later

pg-index-health is an embeddable schema linter for PostgreSQL that detects common anti-patterns and promotes best practices.

C# command line tool for running tests on Android / iOS / tvOS devices and simulators

Set of polyfills for changed PHPUnit functionality to allow for creating PHPUnit cross-version compatible tests

Web Application Firewall Testing Framework - Go version

Perform visual regression test with a nice GUI as help. 💅 Only for Cypress!

PHP Mutation Testing library

Radio frequency scanner with recon and offensive capabilities

Open-source quantitative decision lab: test market assumptions, preserve negative results, and reproduce evidence.

Create React App Vite ⚛️