Git is a popular source revision control system. GitForce is a GUI front-end for the git commandline tool and runs on both Windows and Linux. It is designed to be easy and intuitive to use and yet powerful enough so you don't need to use a commandline git.
A zero-conf git repository hub for Windows and macOS
...The hub provides a quick overview of your repositories including their current branch and short status information. Additionally, it offers some shortcuts like revealing a repository in the Windows Explorer or macOS Finder, opening a commandline tool in a given repository and checking out git branches.
...Collaborate with other developers, pull down recent changes, and lock files to avoid troublesome merge conflicts. GitHub authentication is embedded in Unity, including 2FA. And with a click of a button, you can quickly initialize your game’s repository. Get off of the commandline and work exclusively within Unity by downloading and installing the GitHub package!