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