GRV : GRV is a terminal based interface for viewing git repositories. It allows refs, commits and diffs to be viewed, searched and filtered. The behaviour a...
BlackBox : Safely store secrets in a VCS repo (i.e. Git, Mercurial, Subversion or Perforce).
Commitsar : Tool to make sure your commits are compliant with conventional commits. It is aimed mainly at CIs to prevent branches with commits that don’t comply. ...
Pro Git : The entire Pro Git book, written by Scott Chacon and published by Apress, is available here
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.