USDZ to OBJ converter: the materials and the textures kept

Drop a .usdz and get a zip with the .obj and its files, converted in Blender on our server. The trip keeps the materials and the textures; the skeleton and the skin weights, the shape keys and vertex colours cannot come along. Free, no account, nothing to install.

Free · no account neededNeed a VRM avatar instead? →

How do I convert USDZ to OBJ?

Drop the file on this page, wait while the server converts it, and download a zip with the .obj and its files.

  1. 1Choose a .usdz. Files up to 50 MB.
  2. 2The converter opens it in Blender on our server and writes OBJ. Most files take under a minute; the page shows the result in 3D when it is done.
  3. 3Download a zip with the .obj and its files. The upload and the result are deleted 3 days later.
In:
.usdz, .usd, .usda, .usdc
Out:
a zip with the .obj and its files
Keeps:
the materials and the textures
Cost:
free, no account
  • The skeleton and the skin weights, the shape keys and vertex colours cannot be carried into OBJ.

What survives the trip

A .usdz is a self-contained USD package and is the form that always works; .usd, .usda and .usdc are taken too, zipped with their folder. Every path inside is checked before the file is opened: only relative paths that stay inside the upload are followed. Meshes, UsdPreviewSurface materials, skeletons and blend shapes are read; cameras and lights are not.

The result is a zip with the .obj, its .mtl and the images the materials name, so unpacked into one folder it opens textured. OBJ has no room for a skeleton, shape keys or animation, so those stay behind.

USDZ and OBJ do not hold the same things, and the page says so before you upload: the trip keeps the materials and the textures, and the skeleton and the skin weights, the shape keys and vertex colours cannot come along. OBJ is what every 3D program since the 1990s reads.

What this conversion cannot do

Measured on real files, not assumed. Everything below is a property of the formats or of the pipeline, and knowing it beforehand is cheaper than discovering it in your 3D tool.

A USD that reaches outside its folder is refused

USD assembles scenes out of other files. An absolute path of any operating system, a web or file:// address, a path that climbs out of the folder, a layer referenced but not uploaded, or value clips get the whole conversion refused. Package the scene as a .usdz, or zip the folder.

No rig, no shape keys, no animation

OBJ stores a mesh and nothing that moves it. A skinned model is written in the pose its skeleton holds, as a statue; the bones, the weights and the blend shapes are not in the file because the format has no place for them.

Uploads stop at 50 MB

A larger file is refused before anything is uploaded. Decimate a dense mesh or shrink the textures in your 3D tool first; neither changes the format.

Frequently asked questions

Are .usd, .usda and .usdc accepted, or only .usdz?

Yes, all four, as input. A loose layer with files beside it should be zipped with its folder; a .usdz goes in as it is.

Why is the download a zip?

Because a textured OBJ is several files: the .obj, the .mtl and the images. Unpack them into one folder and keep them together; the .obj finds its materials by relative path.

Is anything uploaded, and for how long?

Yes: the file you drop goes to our server in New York, is converted there, and both the upload and the result are deleted 3 days after the conversion. Nothing is shared with anyone.

Can I look at the USDZ first?

Yes, without uploading anything: the USDZ viewer draws it in your browser. Open the USDZ viewer →

Can this become a VTuber avatar?

Not from OBJ: an avatar needs a skeleton, skin weights and a face that moves, and OBJ has no room for them. Convert the rigged source to VRM instead.

The other format pairs

All 50 are free, all run the same pipeline, and all say what they drop.

Only want to look at the file? GLB viewer, FBX viewer and OBJ viewer all run on your own device — nothing is uploaded.

Is your model going into VTubing?

Converting because the model is going into VTubing? OBJ is not the format those apps read. The same rigged file becomes a VRM with its humanoid bones mapped and its materials converted, in one step on the FBX to VRM converter.

Open the VRM converter

More tools for this format