Code Maat : Code Maat is a command line tool used to mine and analyze data from version-control systems (VCS).
Beekeeper Studio : Open Source cross-platform SQL Editor and Database Manager. Use Beekeeper Studio to query and manage your relational databases, like MySQL, Postgres, ...
Pro Git : The entire Pro Git book, written by Scott Chacon and published by Apress, is available here
Git Common-Flow : Common-Flow is an attempt to gather a sensible selection of the most common usage patterns of git into a single and concise specification. It is based...
GitLab : GitLab is a web-based Git repository manager with wiki and issue tracking features. GitLab offers hosted accounts similar to GitHub, but also allows i...
Git Extensions is the only graphical user interface for Git that allows you control Git without using the commandline. It comes with a manual and video tutorials to get you started quickly.