gitfs : gitfs is a FUSE file system that fully integrates with git. You can mount a remote repository’s branch locally, and any subsequent changes made to the...
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
Beekeeper Studio : Open Source cross-platform SQL Editor and Database Manager. Use Beekeeper Studio to query and manage your relational databases, like MySQL, Postgres, ...
GitPrep : GitPrep is Github clone. you can install portable github system into unix/linux. You can create users and repositories without limitation.
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.