The OWASP ZAP core project
Test automation made simple
CAT is the basic component of the server project
Test Automation Management Tool
Marathon supports testing of Java/Swing and Java/Fx applications.
PyUnit and PyDev extensions for arbitrary Executables
A library for monitoring the garbage collection of app objects
Madcow 2.0 - Advanced Test Automation
Library tools to collect timing in Java, C, C++
Enables you to run load test written in a .Net language with Grinder.