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Updated September 2026
Desktop mesh in. Apple AR zip out.
Use this when you have an OBJ and the destination is Quick Look. MTL maps are not applied. You get a USDZ with a default material around the OBJ hull.
Source OBJ, target USDZ, drop the .obj only, download .usdz.
1
Source is OBJ. The File API reads it in this tab. Nothing is posted. Keep it under 80 MB.
2
A USDZ is written around the OBJ mesh with a default material.
3
AirDrop the .usdz. Keep the OBJ for the DCC.
This page is only OBJ → USDZ. Other pairs have their own keep and lose notes so they do not repeat this conversion.
| On this conversion | What happens |
|---|---|
| Keeps | Triangle geometry inside USDZ. |
| Drops | MTL and texture lookdev. Default material only. |
| Next step | Open on iOS. For a web pack, use OBJ to GLB instead. |
| Attribute | Result on the reference scene |
|---|---|
| Separate objects | Kept as 2 |
| UV coordinates | Kept |
| Vertex colour | Lost |
| Material names | Lost |
| Vertices on the reference scene | 72 of 48 |
| Mesh | Source | USDZ | Change | Vertices written |
|---|---|---|---|---|
| mug.glb | 880 KB | 2,927 KB | 3.3x | 150,000 |
| lion.glb | 8,768 KB | 30,487 KB | 3.5x | 1,496,202 |
OBJ as the source: Default material on export. Source has no PBR to keep. Measured 2026-09-13 by running this converter’s own loaders and exporters headlessly. How every format was measured.
OBJ is parsed with the File API. USDZ is written in memory. MTL and texture lookdev. Default material only. That is a format rule, not an upload. Files over 80 MB are refused because RAM is the limit.
Use this when you have an OBJ and the destination is Quick Look. MTL maps are not applied. You get a USDZ with a default material around the OBJ hull.
Source OBJ, target USDZ, drop the .obj only, download .usdz. No Blender and no account.
Not if the look lived in MTL. This converter skips sidecars. You get a Quick Look mesh with a default material.
USDZ for Apple AR. GLB for the web. STL for a slicer.
No. OBJ is parsed here and USDZ is written in memory. There is no convert API.
Yes. Open the OBJ viewer if you only need to orbit. Convert when the next tool actually wants USDZ.
Open on iOS. For a web pack, use OBJ to GLB instead.
