Sweetjab - Sweetjab combines your issues and pull requests from GitHub, into a single page, to easily prioritize and delegate
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Github Profile Visualizer - Tool for visualizing GitHub profiles
GitZip - Download or create a download link for a GitHub project folder/sub-folder or file.
Git Story - Tell the story of your Git project by creating video animations (.mp4) of your commit history directly from your Git repo.
Board for Github - A webview based GitHub project app with native features