cgit - A hyperfast web frontend for git repositories written in C.
SourceTree - Mac and Windows client for Mercurial and Git.
Frog Git - Frog Git is the community-based lightweight code hosting solution that is written in the Go language.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
TortoiseGit - TortoiseGit is an easy to use client for the Git distributed revision control system.