cadtomesh
Free CAD & 3D converter - in your browser, no upload
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cadtomesh - Free CAD & 3D converter - in your browser, no upload

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Convert CAD & 3D files free in your browser - nothing is uploaded. The engine runs locally: drop a STEP, IGES, BREP, IFC, STL, OBJ, GLB or FBX (28 inputs), preview in 3D, then export STL, OBJ, PLY, GLB, glTF, 3MF, USDZ or DAE. 224 paths, no queue, no account, no watermark. CADtomesh for Windows (one-time purchase, Microsoft Store) adds offline use, folder batches up to 50, B-rep export and Rhino 3DM / DXF input. The browser converter stays free.

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Hi Product Hunt! I'm Eric, the maker of cadtomesh.

I built it because every "free" online CAD converter I tried asked me to upload proprietary STEP/IGES files to someone else's server - a non-starter for client work and NDA'd parts. So I made the whole conversion engine run in your browser (WebAssembly): your file never leaves your machine.

Free, forever:

- 28 input formats (STEP, IGES, BREP, IFC, STL, OBJ, PLY, GLB, glTF, 3MF, FBX, DAE, USDZ and more) to 8 outputs = 224 conversion paths

- Full-screen 3D preview with solid / wire / X-ray before you export

- No account, no queue, no watermark, no upload

For jobs a browser tab cannot hold, CADtomesh for Windows on the Microsoft Store (one-time purchase) adds offline use, folder batches up to 50, B-rep export and Rhino 3DM / DXF input. The web version stays free and unlimited either way.

Feedback I'd love: which formats you still miss, and whether the 3D preview catches what you care about (non-manifold edges, flipped normals, wrong scale). Happy to answer anything about the local-engine / WASM approach.