Convert FBX to USDZ Online (Free & Secure)
To convert FBX to USDZ, drop your .fbx file on this page and download a .usdz file seconds later. The route is FBX → GLB → USDZ (parsed into a GLB scene, then exported as USDZ), and geometry and materials are carried across where USDZ allows.
Select .FBX file
or drag & drop .fbx file here
Try the new iLove3DM Studio
Get a better experience in our new Studio: a full-screen 3D viewer, live preview and all tools in one workspace. This classic page keeps working as before.
⚡ AI Summary & Quick Answer
To convert FBX to USDZ, drop your .fbx file on this page and download a .usdz file seconds later. The route is FBX → GLB → USDZ (parsed into a GLB scene, then exported as USDZ), and geometry and materials are carried across where USDZ allows.
Legacy and DCC formats are heavy and awkward on the web; converting them gives you a compact asset that loads in any modern browser. FBX (.fbx) is a proprietary Autodesk container, usually binary. It holds polygon meshes with layered UVs, skins, blend shapes and scene hierarchy and is most often opened in Unity, Unreal Engine, and Maya. USDZ (.usdz) is an uncompressed zip archive of USD scene data and textures, holding triangle and polygon meshes with Pixar USD scene structure, and is typically used in iOS AR Quick Look, Apple Vision Pro, and Reality Composer.
Under the hood, the FBX file is decoded into an in-memory scene, then serialised as USDZ. The axis convention moves from Y-up by default, but exporters can change it to Y-up. Everything runs in your browser or an isolated, auto-purged instance, so models stay private.
.fbxAbout 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
.usdzTarget format: 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
What happens to your data in FBX → USDZ conversion
Conversion route: FBX → GLB → USDZ (parsed into a GLB scene, then exported as USDZ).
| Aspect | Result | Outcome |
|---|---|---|
| Geometry | Preserved | FBX stores polygon meshes with layered UVs, skins, blend shapes and scene hierarchy; USDZ stores triangle and polygon meshes with Pixar USD scene structure. Surfaces are retriangulated where needed and positions, normals and UV coordinates are carried across. |
| Materials | Preserved | FBX uses Lambert or Phong materials with optional PBR extensions and USDZ can represent the same information, so base colour and surface settings are preserved. |
| Textures | Preserved | In FBX, textures may be embedded or referenced externally depending on the exporter. USDZ can reference or embed textures too, so images and UV mapping stay linked. |
| Vertex colours | Adapted | Per-vertex colours from FBX are kept where USDZ allows them, but support in USDZ is limited and some viewers will ignore them. |
| Animation | Adapted | FBX provides skeletal rigs, blend shapes and baked animation clips. USDZ supports only basic skeletal and transform animation, so complex rigs may be simplified. |
| Units & scale | Adapted | FBX uses centimeters by default, with a settable unit scale; USDZ uses meters per unit, declared in the stage metadata. Check the scale in your target application, and use the Scale tool if the model looks too big or too small. |
| Orientation | Adapted | FBX is Y-up by default, but exporters can change it and USDZ is Y-up. The converter writes a consistent orientation, but verify the up axis in your target software. |
FBX and USDZ produce files of broadly similar size for the same mesh; FBX is medium, usually larger than GLB when textures are embedded, while USDZ is medium, because the zip is stored without compression.
Why convert FBX to USDZ?
Why leave FBX
People most often convert from FBX when they are bringing a game-engine asset into a web or AR workflow. Other common cases include extracting geometry and materials from an animation package and lightening a heavy FBX before sharing it. In FBX → USDZ specifically, preserved: geometry, materials, and textures; adapted: vertex colours, animation, units & scale, and orientation. FBX and USDZ produce files of broadly similar size for the same mesh; FBX is medium, usually larger than GLB when textures are embedded, while USDZ is medium, because the zip is stored without compression.
Why choose USDZ
USDZ is the right target when you are publishing Shopify or e-commerce AR previews. It also fits scenarios such as launching one-tap AR on iPhone, iPad and Apple Vision Pro and delivering assets to Apple developers. Legacy and DCC formats are heavy and awkward on the web; converting them gives you a compact asset that loads in any modern browser.
Where the result opens
After conversion you can open the .usdz file in AR Quick Look, Reality Composer, Xcode or Blender with USD support.
Step-by-Step Guide: FBX → USDZ
- 1
Upload your .fbx file
Drag your FBX model onto the converter or click to browse. Textures may be embedded or referenced externally depending on the exporter; 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 USDZ
Press the Convert to USDZ button. The pipeline follows FBX → GLB → USDZ (parsed into a GLB scene, then exported as USDZ), which usually takes a few seconds for models under 100 MB.
- 4
Download the .usdz file
Your USDZ file downloads automatically. Open it in iOS AR Quick Look and Apple Vision Pro to confirm scale and orientation.
Tips for FBX → USDZ
- Centimeter units make models 100x too large or small in meter-based tools (FBX source).
- Outside the Apple ecosystem few editors can open it (USDZ target).
- Always verify real-world size: FBX is centimeters by default, with a settable unit scale, while USDZ is meters per unit, declared in the stage metadata.
Frequently Asked Questions
How do I convert FBX to USDZ without losing quality?
Upload the .fbx file and press convert; the route is FBX → GLB → USDZ (parsed into a GLB scene, then exported as USDZ). Geometry is carried over exactly; materials are preserved, and textures stay linked through UV coordinates.
Does FBX to USDZ conversion keep textures?
In FBX, textures may be embedded or referenced externally depending on the exporter. USDZ can reference or embed textures too, so images and UV mapping stay linked.
Why does my USDZ model look the wrong size or rotation?
FBX uses centimeters by default, with a settable unit scale; USDZ uses meters per unit, declared in the stage metadata. Check the scale in your target application, and use the Scale tool if the model looks too big or too small. FBX is Y-up by default, but exporters can change it and USDZ is Y-up. The converter writes a consistent orientation, but verify the up axis in your target software.
Will the USDZ file be bigger or smaller than my FBX file?
FBX and USDZ produce files of broadly similar size for the same mesh; FBX is medium, usually larger than GLB when textures are embedded, while USDZ is medium, because the zip is stored without compression.
What software can open the converted USDZ file?
USDZ files open in AR Quick Look, Reality Composer, Xcode or Blender with USD support. If you need to go back, use the USDZ to FBX converter.
Is it safe to upload my FBX 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.