Gource - Gource is a software version control visualization tool.
GitNews Web - Trending repositories from GitHub, HackerNews & Reddit
Codeology - Open-source algorithm that visualizes GitHub projects
Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.
The GitHub Matrix Screensaver - Latest commits from GitHub visualized Matrix-style
DeepSource - Automated code reviews with static analysis.