How to convert USDZ to GLB
- Drop your .usdz file into the box above, or click Choose file.
- Check the 3D preview, size and triangle count.
- Make sure GLB is selected as the output format. Adjust scale or up-axis if needed.
- Click Download. The .glb file is created instantly on your device.
Why convert USDZ to GLB?
USDZ models from Apple's AR Quick Look gallery or Reality Composer can be reused on the web or in Android AR by converting them to GLB.
What changes in the conversion
- Units. GLB is defined in metres. Large models (in millimetres) are scaled ×0.001 automatically so they appear at real size.
- Geometry is preserved. Every triangle, with all object transforms applied, ends up in the new file.
USDZ vs GLB
| USDZ | GLB | |
|---|---|---|
| Full name | Universal Scene Description (zipped) | binary glTF |
| Stores | geometry, PBR materials and textures | geometry, materials, textures, hierarchy and animations |
| Colour | Yes | Yes |
| Textures | Yes | Yes |
| Units | stored in the file | metres by specification |
| Exact CAD geometry | No | No |
About the formats
USDZ (Universal Scene Description (zipped)) was based on Pixar's Universal Scene Description and adopted by Apple for AR Quick Look. It is an uncompressed zip package with a USD scene and its textures. It is the format iPhone and iPad use to show 3D models in augmented reality straight from Safari and Messages.
GLB (binary glTF) was defined by the Khronos Group as the single-file binary form of glTF 2.0. It packs meshes, PBR materials, textures, scene hierarchy and animations into one compact file. It is the standard for 3D on the web, AR viewers, e-commerce product views and game engines.
Frequently asked questions
Is this converter free?
Yes. You can convert USDZ to GLB for free – up to 3 conversions a day, with no sign-up and no watermark. If you need more, Pro gives you unlimited conversions and batch conversion (free for 7 days).
Are my files uploaded to a server?
No. The conversion runs entirely in your browser using WebAssembly and JavaScript. Your model never leaves your computer, which also makes it safe for confidential parts and patient data.
Is there a file size limit?
There is no fixed limit. Files of a few hundred megabytes work on a typical laptop; the practical limit is your device's memory.