GitList an elegant and modern git repository viewer. So much is happening with new projects and revisions to existing projects on open-source repositories that it’s almost impossible to keep up without spending a lot of time doing so. GitList lets you quickly browse repositories via a clean, uncluttered interface that nicely organizes files, commits, and stats of a project. The script is free and written in PHP on top of Silex and the Twig template engine.
GitList is actively maintained by many developers around the world. You can fork the project on GitHub and start contributing yourself.