FitNesse
FitNesse is a software development collaboration tool. FitNesse enables customers, testers, and programmers to learn what their software should do, and to automatically compare that to what it actually does do. It compares customers' expectations to actual results.

Jite
Jite is a test management tool to manage and execute tests related to any kind of application or device that needs to be tested and certificated before to release it to end-users.

Mozilla Testopia
Testopia is a test case management extension for Bugzilla. It is designed to be a generic tool for tracking test cases, allowing for testing organizations to integrate bug reporting with their test case run results.

qaManager
qaManager is a platform independent web based application for managing QA projects with a very simple installation. qaManager comes with project tracking, resource management, test case management and more.

QATraq
QATraq is a tool that provides the framework for task management and control, across the whole test process.

Radi
Radi is a lightweight test management tool. Radi supports test directory features like configuring test plans, updating (create/edit) test results for the test images/builds, backup, user management and more.

RTH
RTH (requirements and testing hub) is an open source test management tool that also has requirements management and bug-tracking capabilities

RTH-Turbo
RTH Turbo is an optimized version of RTH, a testing management tool, that allows for requirement management, test case management, defect tracking, creating test plans and analyzing your test results.

Salome-TMF
Salome-TMF is an independent Test Management Tool, which helps you to manage your entire testing process, including creating test scripts, executing tests, tracking results, produce documentation and more.

Tesly
Tesly is a web application written in PHP that helps you create, execute, and report on test plans. QA leaders can track the progress of testing as testers use the interface to report completion of test cases.

Test Case Web
Test Case Web (TCW) is an online test case management (TCM) and test-tracking system built with PHP and a SQL backend.

Testitool
Test Run is the next generation of test planning software. Based upon Testitool it provides QA engineers with a state of the art test bench, and managers with the reports they need to bring visibility into their teams work.

TestLink
TestLink is a web-based test management tool. The application provides test specification, test plans and execution, reporting, requirements specification and collaborate with well-known bug trackers.

Testmaster
Testmaster is a test case logging, reporting and test automation tool, much like the commercial product Test Director. Testmaster runs on Linux and utilizes Apache to serve web pages, postgresql as the database, antiword to convert MS docs and Perl as the development language.

TET
The Test Environment Toolkit (TET) is provided as an open source, unsupported, command-line product. It is widely used in many test applications including The Open Group's UNIX Certification program and the Free Standards Group's LSB Certification program.

TracTest
A test case management tool for trac that uses subversion as the test case repository and uses the ticket framework in trac to create test runs.

WebTst
WebTst is an open-source test management tool aimed at creating and managing user-centric testing. WebTst is a tool written in Perl and dependent on Apache.

XStudio
XQual Studio is a free graphical and modular in design test management application that handles the complete life-cycle of your QA/testing projects from end to end: users, requirements, specifications, development projects (scrum oriented), SUTs, tests, test plans, test reports and test campaigns.