Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.
GitHub Visualizer - Enter user/repo and see the project visually
Random User Generator - Like Lorem Ipsum, but for people.
Commit Together by Github - Now add co-authors to your commits
GitWrapped - View/Share how you contributed to Github over the years
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful