Docusaurus - Easy to maintain open source documentation websites
GitHub Visualizer - Enter user/repo and see the project visually
GitBook - Modern Publishing, Simply taking your books from ideas to finished, polished books.
Gource - Gource is a software version control visualization tool.
Fix All Conflicts - Easy-to-use CUI for fixing git conflicts
CodeFlower - CodeFlower visualizes source code repositories using an interactive tree.