Chamfer
Describe it. Watch it take shape.
Chamfer is an AI CAD designer that runs entirely in your browser. Describe the part you want in plain words, or show it a photo, and it builds a real 3D model while you watch — checking its own work from every angle and fixing its mistakes until the part matches what you asked for. Fine-tune dimensions with live sliders, then export STEP, STL, or 3MF for 3D printing and manufacturing.
Everything stays on your computer: your API key and your designs never leave your machine.
Quick start
npx chamferOpen the printed URL, add your API key in Settings, and describe a part — or click one of the preset prompts.
Requires Node.js >= 22.19. The first part you build downloads the CAD kernel (build123d + OpenCascade via Pyodide, a few tens of MB) into your browser.
Options
--port <n>— listen on a different port (default 8787)CHAMFER_DATA_DIR— where conversations and settings are stored (default~/.chamfer)
Links
- Project page
- Text-to-CAD demo · Image-to-3D demo
- Source (Apache-2.0)