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