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Local converter

USDZ to GLTF Converter

Convert USDZ files to GLTF locally in your browser for faster handoff across 3D tools.

Processed locally
No signup required
Files stay on your device
Browser-local USDZ to GLTF conversion illustration

Private browser conversion

Files are converted locally in your browser.

1Upload2Convert3Download

Browser-local workflow

How this tool works

  1. Step 1

    USDZ

    Choose a USDZ file from this device.

  2. Step 2

    Browser-local conversion

    The supported geometry is converted in this browser.

  3. Step 3

    GLTF

    Download the GLTF result when conversion is complete.

Preserved

  • Geometry

Limited

  • Materials
  • Textures
  • Scene hierarchy

Lost

  • Vertex colors
  • Animation

Direct answer

What is preserved when converting USDZ to GLTF?

This converter processes the USDZ file locally in your browser and downloads the converted GLTF file. Geometry is retained by the current loader and writer. Materials, textures, scene hierarchy, and units and scale use a supported subset. Vertex colors and animation are not included in the downloaded file.

Before you convert

USDZ to GLTF compatibility

These results describe Modelfy's current browser loader and exporter, not every feature allowed by the file specifications.

Data preserved, limited, or lost when converting USDZ to GLTF
DataResultWhat this implementation does
GeometryPreservedGeometry is retained by the current USDZ loader and glTF writer.
MaterialsLimitedMaterials are normalized to Three.js standard materials; advanced shader properties can change.
TexturesLimitedImages are embedded in the downloaded JSON glTF rather than emitted as companion files.
Vertex colorsNot exportedThe USDZ format can contain this data, but the current single-file loader does not retain it for conversion.
AnimationNot exportedThe USDZ format can contain this data, but the current single-file loader does not retain it for conversion.
Scene hierarchyLimitedScene hierarchy is carried through the supported subset of the USDZ loader and glTF writer.
Units and scaleLimitedASCII USDA-based archives preserve metersPerUnit; archives without stage metadata use the OpenUSD centimeter fallback.

Verify after export

  • Compare material colors and textures with the browser preview before using the result in production.
  • Confirm that a static model is acceptable; animation is not exported.

Why choose this USDZ to GLTF converter

Local USDZ decoding

The selected USDZ model file is decoded and rewritten as GLTF on your device; the model file is not uploaded to Modelfy.

USDZ to GLTF data report

The compatibility table identifies geometry as preserved by this loader and writer.

GLTF output checks

Materials is limited; review the implementation detail and verify the downloaded file in your destination tool.

Preview before export

Inspect the browser preview before converting, then use the post-export checklist to confirm the GLTF result.

How to convert USDZ to GLTF online

  1. 01

    Upload your USDZ file

    Drag and drop the file into the converter, or click Upload. USDZ inputs up to 25 MB are processed locally.

  2. 02

    Convert to GLTF

    Preview the model in 3D, then click Convert. The conversion runs locally in the browser; processing time depends on model complexity and device resources.

  3. 03

    Download the GLTF file

    Your GLTF file downloads straight to your device, ready for the next tool in your pipeline.

About the USDZ file format

Universal Scene Description (zipped)

USDZ packages Pixar’s Universal Scene Description into a single uncompressed ZIP archive. Apple adopted it as the native AR format for iOS: Safari, Messages, and Mail open USDZ files directly in AR Quick Look.

For e-commerce and product visualization, shipping a USDZ next to a GLB covers both Android (Scene Viewer) and iOS (Quick Look) AR experiences.

Format reference: Alliance for OpenUSD USDZ specification

Strengths

  • Native AR support on iPhone and iPad
  • Single-file scene with materials
  • Backed by Pixar’s USD ecosystem

Commonly used for

  • iOS AR Quick Look experiences
  • E-commerce product AR
  • USD pipeline delivery

About the GLTF file format

GL Transmission Format

glTF 2.0 is a royalty-free specification from the Khronos Group for efficient transmission of 3D scenes. The .gltf variant stores the scene description as readable JSON, optionally referencing external binary buffers and textures.

It is the most widely supported runtime format on the web: three.js, Babylon.js, Unity, Unreal, and most DCC tools read and write glTF directly.

Format reference: Khronos glTF 2.0 specification

Strengths

  • Open standard with wide industry support
  • Human-readable JSON scene description
  • PBR materials, skins, and animations

Commonly used for

  • Web 3D and e-commerce viewers
  • Cross-tool scene exchange
  • Runtime asset delivery

Frequently asked questions

Is my USDZ model file uploaded to a server?

The selected USDZ model file is processed by the browser and is not uploaded to Modelfy. Website code and static assets still load over the network like a normal web page.

Will I lose quality converting USDZ to GLTF?

Mesh geometry is preserved as closely as the GLTF format allows. The target format may triangulate geometry or drop unsupported features such as animations, materials, textures, or scene hierarchy.

Is the USDZ to GLTF converter free to use?

Yes. The browser viewer, converter, and local 3D text tool require no account and add no watermark. Input limits vary by format, up to 50 MB; AI model generation is a separate credit-based product.

What is the maximum file size?

USDZ inputs up to 25 MB are accepted. The format-specific limit keeps browser-local parsing bounded; actual processing also depends on available memory, model complexity, and device performance.

Why can’t some USDZ files be opened in the browser?

USDZ archives can contain ASCII (.usda) or binary crate (.usdc) data. Browsers can parse the ASCII variant, but binary USDC (which many Apple tools export) has no JavaScript parser yet. If your file fails, convert from the original GLB instead.

Does the browser tool support .gltf files with external buffers?

Self-contained .gltf files (embedded buffers and textures) work best, because the browser only receives the single file you upload. If your .gltf references external .bin or texture files, export it as .glb first.

Related converters

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AI 3D generation

From a single image to a production-ready 3D model

These browser tools stay free for viewing and converting files you already have. When the model does not exist yet, Modelfy generates a textured mesh from one reference image — the first one is free.

Try the AI 3D generator