Convert USDZ to FBX Online (Free & Secure)
USDZ to FBX conversion on iLove3DM takes one upload and no account. Your USDZ model, built from triangle and polygon meshes with Pixar USD scene structure, is rewritten as FBX with materials mapped to what FBX supports.
Select .USDZ file
or drag & drop .usdz file here
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⚡ AI Summary & Quick Answer
USDZ to FBX conversion on iLove3DM takes one upload and no account. Your USDZ model, built from triangle and polygon meshes with Pixar USD scene structure, is rewritten as FBX with materials mapped to what FBX supports.
Taking a web-ready asset into a desktop modelling format is the classic hand-off from publishing back to production. 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. FBX (.fbx) is a proprietary Autodesk container, usually binary, holding polygon meshes with layered UVs, skins, blend shapes and scene hierarchy, and is typically used in Unity, Unreal Engine, and Maya.
The converter parses the USDZ scene graph, normalises meshes and materials, and re-exports them as FBX. Units change from meters per unit, declared in the stage metadata to centimeters by default, with a settable unit scale. 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
.fbxTarget format: FBX (Autodesk Filmbox)
Industry-standard exchange format for games, animation, and visual effects supporting complex skeletal rigs and blend shapes.
- Structure: a proprietary Autodesk container, usually binary
- Materials: Lambert or Phong materials with optional PBR extensions
- Units: centimeters by default, with a settable unit scale
- Axis: Y-up by default, but exporters can change it
- Opens in: Unity, Unreal Engine, Maya, 3ds Max or Blender
What happens to your data in USDZ → FBX conversion
Conversion route: USDZ → GLB → FBX (parsed into a GLB scene, then exported as FBX).
| Aspect | Result | Outcome |
|---|---|---|
| Geometry | Preserved | USDZ stores triangle and polygon meshes with Pixar USD scene structure; FBX stores polygon meshes with layered UVs, skins, blend shapes and scene hierarchy. Surfaces are retriangulated where needed and positions, normals and UV coordinates are carried across. |
| Materials | Adapted | USDZ uses UsdPreviewSurface PBR materials. FBX only supports Lambert or Phong materials with optional PBR extensions, so values are mapped to the closest equivalent and advanced PBR channels may be simplified. |
| Textures | Adapted | In USDZ, textures are packed inside the archive. In FBX, textures may be embedded or referenced externally depending on the exporter, so texture handling is reduced to what the target supports. |
| Vertex colours | Preserved | Per-vertex colours in USDZ are written to FBX as vertex colour data. |
| Animation | Preserved | USDZ provides basic skeletal and transform animation; FBX supports it as well, so clips can travel with the model. |
| Units & scale | Adapted | USDZ uses meters per unit, declared in the stage metadata; FBX uses centimeters by default, with a settable unit scale. 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 FBX is Y-up by default, but exporters can change it. The converter writes a consistent orientation, but verify the up axis in your target software. |
USDZ and FBX produce files of broadly similar size for the same mesh; USDZ is medium, because the zip is stored without compression, while FBX is medium, usually larger than GLB when textures are embedded.
Why convert USDZ to FBX?
Why leave USDZ
People most often convert from USDZ when they are extracting textures from an AR package. Other common cases include using an iPhone scan or AR asset in a web or Android pipeline and opening a Reality Composer model in Blender or three.js. In USDZ → FBX specifically, preserved: geometry, vertex colours, and animation; adapted: materials, textures, units & scale, and orientation. USDZ and FBX produce files of broadly similar size for the same mesh; USDZ is medium, because the zip is stored without compression, while FBX is medium, usually larger than GLB when textures are embedded.
Why choose FBX
FBX is the right target when you are importing into Unity, Unreal Engine or Maya. It also fits scenarios such as keeping skeletons and animation for character pipelines and handing an asset to a game or VFX team. Taking a web-ready asset into a desktop modelling format is the classic hand-off from publishing back to production.
Where the result opens
After conversion you can open the .fbx file in Unity, Unreal Engine, Maya, 3ds Max or Blender.
Step-by-Step Guide: USDZ → FBX
- 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 FBX
Press the Convert to FBX button. The pipeline follows USDZ → GLB → FBX (parsed into a GLB scene, then exported as FBX), which usually takes a few seconds for models under 100 MB.
- 4
Download the .fbx file
Your FBX file downloads automatically. Open it in Unity and Unreal Engine to confirm scale and orientation.
Tips for USDZ → FBX
- Only a subset of PBR features is supported by AR Quick Look (USDZ source).
- Version differences between FBX releases cause import warnings (FBX target).
- Always verify real-world size: USDZ is meters per unit, declared in the stage metadata, while FBX is centimeters by default, with a settable unit scale.
Frequently Asked Questions
How do I convert USDZ to FBX without losing quality?
Upload the .usdz file and press convert; the route is USDZ → GLB → FBX (parsed into a GLB scene, then exported as FBX). Geometry is carried over exactly; materials are mapped to the closest FBX equivalent, and textures stay linked through UV coordinates.
Does USDZ to FBX conversion keep textures?
In USDZ, textures are packed inside the archive. In FBX, textures may be embedded or referenced externally depending on the exporter, so texture handling is reduced to what the target supports.
Why does my FBX model look the wrong size or rotation?
USDZ uses meters per unit, declared in the stage metadata; FBX uses centimeters by default, with a settable unit scale. 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 FBX is Y-up by default, but exporters can change it. The converter writes a consistent orientation, but verify the up axis in your target software.
Will the FBX file be bigger or smaller than my USDZ file?
USDZ and FBX produce files of broadly similar size for the same mesh; USDZ is medium, because the zip is stored without compression, while FBX is medium, usually larger than GLB when textures are embedded.
What software can open the converted FBX file?
FBX files open in Unity, Unreal Engine, Maya, 3ds Max or Blender. If you need to go back, use the FBX 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.