GitHub Desktop
GitHub is where people build software. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects.
github.com
Tower
Over 100,000 developers and designers are more productive with Tower
git-tower.com
GitKraken Legendary Git Tools
Meet GitKraken, the creator of legendary Git tools for developers and teams
gitkraken.com
git-fork.com
Sourcetree
A Git GUI that offers a visual representation of your repositories. Sourcetree is a free Git client for Windows and Mac.
sourcetreeapp.com