Wapiti is a web-application vulnerability scanner
Render Web Services for Viewing/Monitoring and Test Web Applications
Open source Scrum tool and an ALM solution
Test & requirements management
Multiplatform data-driven test automation execution services
Unified Test and Logging layer for multiple programming languages
A protocol agnostic application layer denial of service attack.
Image based Test Automation tool (Java) - Test ANYthing, ANYwhere
PunyKit - it's a very simple webkit-based browser.