STL to USDZ converter
Drop an STL file and get a USDZ back in seconds. STL is triangles only, used mostly for 3D printing slicers. USDZ is Apple's AR package, the usual choice for iPhone and iPad AR Quick Look and Apple Vision Pro. The conversion runs entirely in your browser, so your file never leaves your device.
Choose a file to see its details here. Nothing is uploaded: everything runs in your browser.
How to use the stl to usdz converter
- 1Choose your STL fileDrag it onto the panel or click to browse. It's read locally and never uploaded.
- 2Check the previewOrbit the model and check the triangle count, size and materials before converting.
- 3Download the USDZExport a USDZ with one click. Downloads are included with every plan.
What carries over
- STL has no colour or materials, so the USDZ gets a neutral grey material you can restyle.
- STL is Z-up, so the model is turned Y-up on import and keeps its orientation in the USDZ.
- Units: STL is unitless (slicers assume millimetres) and USDZ is metres in our export. Numbers are copied 1:1, so check the size in the target app.
- Open the USDZ on an iPhone or iPad to place the model in your room with AR Quick Look.
STL vs USDZ
| STL | USDZ | |
|---|---|---|
| Full name | stereolithography mesh | Universal Scene Description, zipped |
| Appearance | no colour or materials | PBR materials and embedded textures |
| Animation | No | Yes |
| Units | unitless (slicers assume millimetres) | metres in our export |
| Best for | 3D printing slicers | iPhone and iPad AR Quick Look and Apple Vision Pro |
Questions
- Is my STL file uploaded?
- No. The STL is parsed and the USDZ is written by JavaScript in your browser tab. The file never reaches our servers.
- Will the USDZ look the same as the STL?
- The geometry is identical. USDZ keeps materials and textures too. See the notes above for this exact pair.
- Is there a file size limit?
- Files up to 150 MB open, but very large models depend on your device's memory. Desktop browsers handle big files best.