Google Maps but for your repo (Open Source)
Hi HN, I built Repomap, a tool that generates interactive architecture diagrams from any GitHub repository. It uses a Rust + tree-sitter engine to analyze the codebase and produces a D3-based graph UI with clustering, zoom/pan, and live progress updates
Google Maps but for your repo (Open Source) launched on February 8, 2026 with 7 votes, #1,385 of 16,627 launches that month and more than 75% of that year's launches.
What it does
Contribute to zacharykapank/repomap development by creating an account on GitHub.
Generate interactive architecture diagrams from any GitHub repository. git clone [email protected]:zacharykapank/repomap.git cd repomap # Install JS dependencies npm install # Build the Rust engine cd engine && cargo build --release && cd .. # Start dev servers (API + web) npm run dev The web app runs at http://localhost:5173 and the API at http://localhost:3001 . repomap/ ├── apps/ │ ├── api/ # Hono API server (Bun) │ └── web/ # React + Vite frontend ├── engine/ # Rust analysis engine ├── packages/ │ └── graph-format/ # Shared TypeScript types ├── turbo.json └── package.json API Endpoints Method Endpoint Description POST /api/analyze Start analyzing a repository GET /api/status/:jobId Check…from github.com
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I built this as part of my quest to properly learn data visualization. The code is the easy part! Some lessons learned: - personal verification of the the general truth that pie charts are tough! and the returns are not great for the effort due to people's difficulties perceiving angles - may not use "vanilla" d3 with no React. was difficult to adapt for mobile - the GitHub API provides fairly standardized responses so building dynamic charts wasn't too bad. But when working with streaming data (say Kafka) I can see this getting interesting... schema registry should help but creating a view…
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Source: Show HN post ↗
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