The OWASP ZAP core project
End-to-end testing framework in Node.js & using the Webdriver API
Test Automation Management Tool
Marathon supports testing of Java/Swing and Java/Fx applications.
Testsuite for libdwg
Automated Provisioning and Testing Framework
Benchmarking tool for web based applications and web servers.
Madcow 2.0 - Advanced Test Automation
Web Crawling, Web Testing, and Web Scraping application
AutoBlocks is an automated testing framework.