SourceTree

SourceTree provides a quick and simple way to deal with Git and Mercurial. Easily use both distributed version control systems from a single application. Work on your GitHub, Bitbucket, and Kiln accounts without leaving the app. It also works with Subversion servers! Atlassian has bought SourceTree, which is now free for a limited time. 

Overview

Fully-powered DVCS
Say goodbye to the command line and hello to the SourceTree desktop program, which supports Git and Mercurial to their full potential. The tool's easy interface allows you to manage all of your repositories, whether they are hosted or locally. 

Perfect for newbies. 
Simplify DVCS for your team. The app can get everyone up to speed on Git and Mercurial. Create, clone, commit, push, pull, merge, and other operations are all accessible with a single click. 

Powerful enough for specialists. 
Make advanced Git and Mercurial developers more productive. Review your outgoing and incoming changesets, cherry-pick between branches, handle patches, rebase, store, shelve, and much more. 

Git-flow and Hg-flow out of the box. 
Use Gitflow and Hgflow with ease. Source Tree's straightforward interface to Git and Hg's 'branchy' development approach will help you keep your repositories cleaner and your development more efficient. A consistent development approach straight out of the box! 

Note: Requires .NET Framework.