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Local converter

OBJ to USDZ Converter

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

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

Private browser conversion

Files are converted locally in your browser.

1Upload2Convert3Download

Browser-local workflow

How this tool works

  1. Step 1

    OBJ

    Choose a OBJ file from this device.

  2. Step 2

    Browser-local conversion

    The supported geometry is converted in this browser.

  3. Step 3

    USDZ

    Download the USDZ result when conversion is complete.

Preserved

  • Geometry

Limited

  • Scene hierarchy

Lost

  • Materials
  • Textures

Direct answer

What is preserved when converting OBJ to USDZ?

This converter processes the OBJ file locally in your browser and downloads the converted USDZ file. Geometry is retained by the current loader and writer. Scene hierarchy uses a supported subset. Materials and textures are not included in the downloaded file.

Before you convert

OBJ to USDZ 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 OBJ to USDZ
DataResultWhat this implementation does
GeometryPreservedGeometry is retained by the current OBJ loader and USDZ writer.
MaterialsNot exportedThe uploader accepts one OBJ file, so a companion .mtl file is not read.
TexturesNot exportedThe uploader accepts one OBJ file, so images referenced by a companion .mtl file are not read.
Vertex colorsNot in sourceOBJ does not define vertex colors to carry into USDZ.
AnimationNot in sourceOBJ does not define animation to carry into USDZ.
Scene hierarchyLimitedVisible meshes are written as world-space transforms rather than the complete source scene graph.
Units and scaleNot in sourceOBJ does not define units and scale to carry into USDZ.

Verify after export

  • Confirm scale and units when opening the USDZ file in the destination application.
  • Compare material colors and textures with the browser preview before using the result in production.
  • Preview the USDZ in Apple Quick Look to confirm scale and material appearance.

Why choose this OBJ to USDZ converter

Local OBJ decoding

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

OBJ to USDZ data report

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

USDZ output checks

Scene hierarchy 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 USDZ result.

How to convert OBJ to USDZ online

  1. 01

    Upload your OBJ file

    Drag and drop the file into the converter, or click Upload. OBJ inputs up to 10 MB are processed locally.

  2. 02

    Convert to USDZ

    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 USDZ file

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

About the OBJ file format

Wavefront OBJ

The Wavefront OBJ format has been a de facto interchange standard since the 1990s. It stores vertex positions, normals, texture coordinates, and faces in plain text, with materials described in a companion .mtl file.

OBJ does not support animation or scene hierarchies, which keeps it simple and portable across many modeling, printing, and rendering tools.

Format reference: Library of Congress OBJ format description

Strengths

  • Broad support across established 3D tools
  • Simple structure that is easy to debug
  • Reliable geometry interchange

Commonly used for

  • Static model exchange between tools
  • 3D printing preparation
  • Photogrammetry and scan output

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

Frequently asked questions

Is my OBJ model file uploaded to a server?

The selected OBJ 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 OBJ to USDZ?

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

Is the OBJ to USDZ 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?

OBJ inputs up to 10 MB are accepted. The format-specific limit keeps browser-local parsing bounded; actual processing also depends on available memory, model complexity, and device performance.

Where are the materials and textures of my OBJ file?

OBJ stores materials in a separate .mtl file with texture images alongside it. This single-file browser tool does not request those companions, so it displays supported OBJ geometry with a neutral material; review the compatibility table before conversion.

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.

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