The OWASP ZAP core project
Programmer-friendly testing framework for Java and the JVM
SoapUI is a free and open source cross-platform functional testing
Test automation made simple
Now continued as OculiX — see oculix.org
Most popular Mocking framework for unit tests written in Java
Flexible, lightweight multi-language test reporting tool
Python version of the Playwright testing and automation library
State of the art mutation testing system for the JVM
.NET version of the Playwright testing and automation library
Lightweight service virtualization/ API simulation / API mocking tool
SoloPi Automated Testing Tool
Powerful, elegant and flexible test framework for Kotlin
Cucumber for Ruby
API automation and load testing framework
Desktop app that helps you craft Gatling load-testing simulations
Gateway service providing dynamic routing, monitoring and more
The Open Source Test Automation Platform
Property-based testing for Scala
Database Subsetter and Relational Data Browser
Java GUI-Less browser, supporting JavaScript, to run against web pages
Enterprise integration testing framework
Editor for Fixed Width, Csv and Existing Xml files.
JSCover - JavaScript code coverage
Simple example of draw and rotate 3D box