GitDiagram is a lightweight online tool that transforms any public GitHub repository into an interactive project diagram. Designed to help developers, educators, and technical leads visualize codebase structure quickly, it creates a visual map of folders and files directly from the repo URL. Users can either paste a full GitHub URL into the interface or simply replace “hub” with “diagram” in any GitHub repo URL to trigger the tool.
The generated diagrams are not only visually engaging but also serve a practical function—ideal for onboarding, documentation, or understanding unfamiliar repositories. GitDiagram supports popular repositories out of the box (like FastAPI or Streamlit) and includes options for working with private repos using an API key. With a minimalist UI and clever URL shortcut, it makes technical architecture more accessible without needing additional setup or tools.
