Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
Testing Tools GitHub Repositories (2026) · Open Source Tools
Discover the best Testing Tools open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
Database anonymization and test data management
The PYthoN General UnIt Test geNerator is a test-generation tool for Python
Hercules is the world’s first open-source testing agent, enabling UI, API, Security, Accessibility, and Visual validations – all without code or maintenance. Automate testing effortlessly and let Hercules handle the heavy lifting! ⚡
Detect non-atomic interactions within DB transactions
Visual Studio Test Platform is the runner and engine that powers test explorer and vstest.console.
Chaos Monkey for Spring Boot
Advanced System Analysis Software
Port of a popular ruby faker gem written in kotlin. Generate realistically looking fake data such as names, addresses, banking details, and many more, that can be used for testing and data anonymization purposes.
Automatic test generation for Java
Validate infrastructure as code (IaC) and objects using PowerShell rules.
Java test automation framework for web, mobile, API, CLI, database, and desktop E2E testing with a fluent API and built-in reporting.
VIVIDUS is all in one test automation tool
Stove: The easiest way of writing e2e/component tests for your back-end app (jvm, go, rust, node, etc) with Kotlin
Native, cross-platform gRPC test bench
Catch2, Google Test and doctest Adapter for the VSCode
Headless Chrome/Chromium driver for Capybara
The Testing Framework
distributed rspec & cucumber via bonjour