The OWASP ZAP core project
SoapUI is a free and open source cross-platform functional testing
Now continued as OculiX — see oculix.org
Test automation made simple
Most popular Mocking framework for unit tests written in Java
State of the art mutation testing system for the JVM
Android unit testing framework
Coverage-guided, in-process fuzzing for the JVM
Gateway service providing dynamic routing, monitoring and more
Editor for Fixed Width, Csv and Existing Xml files.
Database Subsetter and Relational Data Browser
Easy to set up bug tracking with Java
A web application for testing webservices
Load testing tool for analyzing and measuring performance of services
A C++ library for AVR and NodeMCU
Software Unit Tests (Language Independent Approach)
USB Bridge for SMBus/I2C, GPIO, & Clock
CAT is the basic component of the server project
SoloPi Automated Testing Tool
Test Automation Management Tool
Fake SMTP server with TLS Support
Translate files between XLS / XLSX and XML format . . .
Modbus slave simulator
Stochastic unit testing utilities