Hi Product Hunt, I'm Sejal, the maker of Trevolyx. I wanted real 3D CAD that opens in a browser tab, with no install, no account, no license, and files that never leave your computer. So I built it. You can sketch, extrude, revolve, sweep, loft, shell and fillet, bend and flatten sheet metal, mate parts into assemblies and make 2D drawings, all in a ribbon engineers already know. Then you can talk to it. Select a face and say "add 4 M6 holes here", and it builds the change; one click undoes it. Ask for something big, like "build a car", and it works like a designer: it lays out the parts and the build order, asks where you want to start, and builds only that part. Everyone gets 2 free AI messages. After that you can plug in your own key from OpenAI, Anthropic, Gemini, OpenRouter, or a local Ollama server; the key stays in your browser. To be honest about the limits: some advanced tools are still thinner than desktop CAD, and simulation isn't in this version. It opens STEP and IGES, and exports STEP, STL, 3MF, OBJ, GLB and DXF. I'd love your honest feedback. Comment here or use Report a bug in the app; I read everything and fix what I can. https://trevolyx.taskninja.ai

Trevolyx

Talk to your CAD. Free AI-powered 3D CAD in the browser.

Talk to your CAD. Free AI-powered 3D CAD in the browser.