Convert USDZ to GLTF Online (Free & Secure)
To convert USDZ to glTF, drop your .usdz file on this page and download a .gltf file seconds later. The route is USDZ → GLB → glTF (parsed into a GLB scene, then exported as glTF), and geometry and materials are carried across where glTF allows.
Select .USDZ file
or drag & drop .usdz file here
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⚡ AI Summary & Quick Answer
To convert USDZ to glTF, drop your .usdz file on this page and download a .gltf file seconds later. The route is USDZ → GLB → glTF (parsed into a GLB scene, then exported as glTF), and geometry and materials are carried across where glTF allows.
Both formats target real-time viewing, which keeps PBR materials intact and leaves mostly packaging differences to handle. USDZ (.usdz) is an uncompressed zip archive of USD scene data and textures. It holds triangle and polygon meshes with Pixar USD scene structure and is most often opened in iOS AR Quick Look, Apple Vision Pro, and Reality Composer. glTF (.gltf) is a JSON scene description that references separate .bin and image files, holding indexed triangle meshes with optional morph targets and skins, and is typically used in Blender, Visual Studio Code glTF tools, and three.js.
Under the hood, the USDZ file is decoded into an in-memory scene, then serialised as glTF. The axis convention moves from Y-up to Y-up, right-handed. Everything runs in your browser or an isolated, auto-purged instance, so models stay private.
.usdzAbout USDZ (Universal Scene Description Zip)
Apple and Pixar standard zero-compression zip archive optimized for Augmented Reality (AR Quick Look) on iOS and visionOS.
- Structure: an uncompressed zip archive of USD scene data and textures
- Materials: UsdPreviewSurface PBR materials
- Units: meters per unit, declared in the stage metadata
- Axis: Y-up
- Opens in: AR Quick Look, Reality Composer, Xcode or Blender with USD support
.gltfTarget format: glTF (JSON)
Standard open-source 3D scene description format using JSON with external or embedded buffers and textures.
- Structure: a JSON scene description that references separate .bin and image files
- Materials: PBR metallic-roughness materials
- Units: meters (fixed by the glTF specification)
- Axis: Y-up, right-handed
- Opens in: Blender, Cesium, three.js or any glTF 2.0 viewer
What happens to your data in USDZ → glTF conversion
Conversion route: USDZ → GLB → glTF (parsed into a GLB scene, then exported as glTF).
| Aspect | Result | Outcome |
|---|---|---|
| Geometry | Preserved | USDZ stores triangle and polygon meshes with Pixar USD scene structure; glTF stores indexed triangle meshes with optional morph targets and skins. Surfaces are retriangulated where needed and positions, normals and UV coordinates are carried across. |
| Materials | Preserved | USDZ uses UsdPreviewSurface PBR materials and glTF can represent the same information, so base colour and surface settings are preserved. |
| Textures | Preserved | In USDZ, textures are packed inside the archive. glTF can reference or embed textures too, so images and UV mapping stay linked. |
| Vertex colours | Preserved | Per-vertex colours in USDZ are written to glTF as vertex colour data. |
| Animation | Preserved | USDZ provides basic skeletal and transform animation; glTF supports it as well, so clips can travel with the model. |
| Units & scale | Adapted | USDZ uses meters per unit, declared in the stage metadata; glTF uses meters (fixed by the glTF specification). Check the scale in your target application, and use the Scale tool if the model looks too big or too small. |
| Orientation | Adapted | USDZ is Y-up and glTF is Y-up, right-handed. The converter writes a consistent orientation, but verify the up axis in your target software. |
USDZ and glTF produce files of broadly similar size for the same mesh; USDZ is medium, because the zip is stored without compression, while glTF is similar to GLB, but split across several files.
Why convert USDZ to glTF?
Why leave USDZ
People most often convert from USDZ when they are using an iPhone scan or AR asset in a web or Android pipeline. Other common cases include opening a Reality Composer model in Blender or three.js and extracting textures from an AR package. In USDZ → glTF specifically, preserved: geometry, materials, textures, vertex colours, and animation; adapted: units & scale and orientation. USDZ and glTF produce files of broadly similar size for the same mesh; USDZ is medium, because the zip is stored without compression, while glTF is similar to GLB, but split across several files.
Why choose glTF
glTF is the right target when you are debugging materials and node hierarchies. It also fits scenarios such as keeping a human-readable scene you can diff in version control and feeding pipelines that expect separate buffers. Both formats target real-time viewing, which keeps PBR materials intact and leaves mostly packaging differences to handle.
Where the result opens
After conversion you can open the .gltf file in Blender, Cesium, three.js or any glTF 2.0 viewer.
Step-by-Step Guide: USDZ → glTF
- 1
Upload your .usdz file
Drag your USDZ model onto the converter or click to browse. Textures are packed inside the archive; no extra files are required.
- 2
Check your free quota
Free accounts can run a few conversions per day; signing in unlocks tracking of your remaining uses. No watermark is ever added.
- 3
Convert to glTF
Press the Convert to glTF button. The pipeline follows USDZ → GLB → glTF (parsed into a GLB scene, then exported as glTF), which usually takes a few seconds for models under 100 MB.
- 4
Download the .gltf file
Your glTF file downloads automatically. Open it in Blender and Visual Studio Code glTF tools to confirm scale and orientation.
Tips for USDZ → glTF
- Outside the Apple ecosystem few editors can open it (USDZ source).
- Relative paths to .bin and texture files break when the files are separated (glTF target).
- Always verify real-world size: USDZ is meters per unit, declared in the stage metadata, while glTF is meters (fixed by the glTF specification).
Frequently Asked Questions
How do I convert USDZ to glTF without losing quality?
Upload the .usdz file and press convert; the route is USDZ → GLB → glTF (parsed into a GLB scene, then exported as glTF). Geometry is carried over exactly; materials are preserved, and textures stay linked through UV coordinates.
Does USDZ to glTF conversion keep textures?
In USDZ, textures are packed inside the archive. glTF can reference or embed textures too, so images and UV mapping stay linked.
Why does my glTF model look the wrong size or rotation?
USDZ uses meters per unit, declared in the stage metadata; glTF uses meters (fixed by the glTF specification). Check the scale in your target application, and use the Scale tool if the model looks too big or too small. USDZ is Y-up and glTF is Y-up, right-handed. The converter writes a consistent orientation, but verify the up axis in your target software.
Will the glTF file be bigger or smaller than my USDZ file?
USDZ and glTF produce files of broadly similar size for the same mesh; USDZ is medium, because the zip is stored without compression, while glTF is similar to GLB, but split across several files.
What software can open the converted glTF file?
glTF files open in Blender, Cesium, three.js or any glTF 2.0 viewer. If you need to go back, use the glTF to USDZ converter.
Is it safe to upload my USDZ model?
Yes. Files are processed in your browser or on isolated instances and purged right after conversion. They are never used to train AI models, and no watermark is added.