Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
SourceTree - Mac and Windows client for Mercurial and Git.
Redmine - Flexible project management web application
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Basecamp - A simple and elegant project management system.
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.