Programmer-friendly testing framework for Java and the JVM
SikuliX version 2.0.0+ (2019+)
Testing Kotlin and Java annotation processors, compiler plugins
Test automation made simple
The OWASP ZAP core project
Flexible, lightweight multi-language test reporting tool
Coverage-guided, in-process fuzzing for the JVM
Most popular Mocking framework for unit tests written in Java
SoapUI is a free and open source cross-platform functional testing
State of the art mutation testing system for the JVM
Lightweight service virtualization/ API simulation / API mocking tool
Gateway service providing dynamic routing, monitoring and more
Python version of the Playwright testing and automation library
Desktop app that helps you craft Gatling load-testing simulations
API automation and load testing framework
Property-based testing for Scala
Cucumber for Ruby
Powerful, elegant and flexible test framework for Kotlin
The Open Source Test Automation Platform
.NET version of the Playwright testing and automation library
Android unit testing framework
Modern concurrency tools including agents, futures, promises, etc.
Optimizer for mobile applications
Java GUI-Less browser, supporting JavaScript, to run against web pages
Database Subsetter and Relational Data Browser