Enterprise integration testing framework
SikuliX version 2.0.0+ (2019+)
Programmer-friendly testing framework for Java and the JVM
The OWASP ZAP core project
Flexible, lightweight multi-language test reporting tool
SoapUI is a free and open source cross-platform functional testing
Test automation made simple
Most popular Mocking framework for unit tests written in Java
Privilege Escalation Awesome Scripts SUITE
State of the art mutation testing system for the JVM
Lightweight service virtualization/ API simulation / API mocking tool
API automation and load testing framework
A modern load testing tool, using Go and JavaScript
Property-based testing for Scala
Open Source record and playback test automation for the web
Gateway service providing dynamic routing, monitoring and more
Python version of the Playwright testing and automation library
The Pentester’s Companion
Desktop app for inspecting your React JS and React Native projects
Powerful, elegant and flexible test framework for Kotlin
Cucumber for Ruby
Python-based continuous integration testing framework
Desktop app that helps you craft Gatling load-testing simulations
.NET version of the Playwright testing and automation library
OS-agnostic, system-level binary package manager