GitHub Visualizer - Enter user/repo and see the project visually
Prowess - The simplest way to collect and leverage product feedback
Octohunt - Search to find developers in your city on Github.
Rayfeed - Improve your product with video and audio feedback 📹🔊
Gource - Gource is a software version control visualization tool.
Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.