SmartGit is ideal for software developers, DevOps professionals, and anyone who frequently works with Git version control systems. It is particularly useful for those who need a GUI-based solution to manage and visualize their repository workflows.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Git Flow - Git Flow is a very self-explanatory free software workflow for managing Git branches.
SourceTree - Mac and Windows client for Mercurial and Git.
Git-Repo - Manage Gitlab, GitHub and Bitbucket from the command line
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.
CodeHub - CodeHub is the most complete, unofficial, client for GitHub on the iOS platform.