TestLink - Test & requirements management
TestRail - TestRail provides comprehensive test case management for software testing. Organize your testing, boost productivity, get real-time insights, and track progress toward milestones. Integrates with leading issue tracking and test automation tools.
Kualitee - Your next ALM alternative for Requirements planning, test case management, and issue tracking for both manual and automated testing.
SquashTest - Squash TM is the test repository manager found in the open source Squash toolkit.
PractiTest - PractiTest is a cloud based Innovative test management tool.
TestLog - Test plan and test case management software. Improve quality assurance and track your project