TrackDuck - Visual feedback for web design and development.
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.
zipBoard - ZipBoard is a web-based visual bug tracking & issue tracking tool that helps developers, testers and project managers collaborate during website and elearning development.
Mercurial SCM - Mercurial is a free, distributed source control management tool.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Atlassian Bitbucket Server - Atlassian Bitbucket Server is a scalable collaborative Git solution.