Kallithea - Kallithea, a free software source code management system supporting two leading version control systems, Mercurial and Git.
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
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.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Mercurial SCM - Mercurial is a free, distributed source control management tool.