Check the 4 useful tools on topic Git
A simpler, faster alternative to git-filter-branch for deleting big files and removing passwords from Git history.
Create useful .gitignore files for your project by selecting from 509 Operating System, IDE, and Programming Language .gitignore templates
I switched to Fork from Sourcetree.
A Git GUI that offers a visual representation of your repositories. Sourcetree is a free Git client for Windows and Mac. It supports Git-flow out of the box.