Testing

Headless Chrome/Chromium driver for Capybara

:zombie: Inject bugs and see if your tests catch them!

An Extensible Request/Response Workbench

CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance.

An integration test framework for React Native.

Swaks - Swiss Army Knife for SMTP

A workshop for learning how to test JavaScript applications

An analysis tool for Python that blurs the line between testing and type systems.

The open-source Playwright library for AI browser regression testing with intelligent caching, auto-healing, and multi-model verification.

🔭 Tracetest - Build integration and end-to-end tests in minutes, instead of days, using OpenTelemetry and trace-based testing.

A Puppeteer bridge for PHP, supporting the entire API.

A Ruby library for testing your library against different versions of dependencies.

XCode CLI & Simulator Skill. Progressive disclosure of output. Minimises context & token use. Lets AI agents build, run sim & drive iOS apps without drowning in Xcode output. Now with Duo support.

A GitHub Action for installing, configuring and running hardware-accelerated Android Emulators on macOS virtual machines.

A curated list of awesome tips and tricks, resources, videos and articles in .NET, Software Architecture, Cloud-Native, Data and AI.

Embedded unit testing framework for Godot 4 supporting GDScript and C#. Features test-driven development, embedded test inspector, extensive assertions, mocking, scene testing.

A mail driver to quickly preview mail

open source test management system with over 2 million downloads!

✔️ PHP Architecture Tester - Easy architecture testing for PHP

Broken link checker that crawls websites and validates links. Find broken links, dead links, and invalid URLs in websites, documentation, and local files. Perfect for SEO audits and CI/CD.

Project page for "The Fuzzing Book"

A mocking and stubbing library for Ruby

Testing, simplified. || An inclusive, accessibility-first GUI for generating clean, semantic Javascript tests in only a few clicks of a button.

CLI tool for summarizing go test output. Pipe friendly. CI/CD friendly.

Random Testing for .NET

Python PyPi staging server and packaging, testing, release tool

A New Project to create a set of links to free Online Learning Resources for New and Experienced Software Testers.

Source code for privacytests.org. Includes browser testing code and site rendering.

A Spring Boot application with lots of test examples

Simple way to identify what is different between 2 instances of any type. Must have for TDD.