Visure - Visure offers a flexible , modern and complete requirements ALM Platform (Application Lifecycle Management).
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.
ReqView - Simple and powerful requirements management tool enabling easy requirements gathering, traceability tracking and offline collaboration.
Git - Git is a free and open source version control system designed to handle everything from small to very large projects with speed and efficiency. It is easy to learn and lightweight with lighting fast performance that outclasses competitors.
Jama - Jama combines requirement management software with enterprise collaboration capabilities to solve product delivery problems.
Mercurial SCM - Mercurial is a free, distributed source control management tool.