Take any GitHub repo URL. Change one word. Hit enter. That's the whole thing — all five of these work right now, no installs, no signup.
1. GitDiagram — see the architecture
github.com/owner/repo → gitdiagram.com/owner/repo
Turns the repo into a visual diagram so you can see how the files connect instead of clicking through folders.
2. Gitingest — full repo as AI context
github.com/owner/repo → gitingest.com/owner/repo
Bundles the summary, directory structure, and file contents into one block of text you can paste straight into any AI.
3. uithub — same idea, one keystroke
github.com/owner/repo → **u**ithub.com/owner/repo
Change the g to a u and you get instant LLM-ready repo context without leaving the URL bar.
4. DeepWiki — an AI wiki for any repo
github.com/owner/repo → deepwiki.com/owner/repo
Generates full documentation plus a chat you can ask questions to, so you learn the codebase without reading it.
5. GitMCP — plug the repo into your AI tool
github.com/owner/repo → gitmcp.io/owner/repo
Creates an instant MCP server for that repo so Cursor, Claude, or VS Code can pull live context from it.
Bonus: press . on any GitHub repo page to open it in a full VS Code editor in your browser.