SoapUI is a free and open source cross-platform functional testing
Automation for iOS, Android, and Windows Apps
The most advanced tool for HTTP API
Your own mini Travis CI to run tests locally
Extremly naughty chaos monkey for Node.js
Lepton is a tool and file format for losslessly compressing JPEGs
An applicaton for CAN bus coms development, testing and validation
DUnit for Delphi XE
Disk diagnostic for disk/controler/driver testing
Collection of Open Source tools for HP ALM
Functional Test Automation tool for pure AS 3.0 SWF and Flash Games
BlueDuck SDA is an open-source automated test framework