GitNexus : The Zero-Server Code Intelligence Engine - GitNexus is a client-side knowledge graph creator that runs entirely in your browser. Drop in a GitHub repo...
VersionPress : VersionPress is a free and open source version control plugin for WordPress built on Git. You can:
Undo changes
Create staging sites
Merge databases ...
Beekeeper Studio : Open Source cross-platform SQL Editor and Database Manager. Use Beekeeper Studio to query and manage your relational databases, like MySQL, Postgres, ...
Gitkube : Gitkube is a tool for building and deploying docker images on Kubernetes using git push.
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.