Free online USD to USDZ converter

Source format: USD

USD stands for Universal Scene Description, a 3D scene description format originally developed by Pixar and now widely used across film, animation, VFX, and real-time 3D pipelines. A USD file can describe complex scenes with geometry, materials, lighting, animation, variants, and references to other assets. It is commonly used in production workflows where many artists and tools need to share the same scene data reliably.

USD is often used as a pipeline interchange format rather than a final delivery format. It may appear as .usd, .usda (ASCII), .usdc (binary), or related composition files. Because USD can reference external textures and assets, a scene may depend on multiple files in addition to the main USD file.

Target format: USDZ

USDZ is a packaged, uncompressed archive of USD assets designed for easy sharing and viewing, especially on Apple platforms. It bundles the scene description together with its referenced resources, such as textures and geometry, into a single file. This makes it convenient for distribution and preview without managing a folder full of dependencies.

USDZ is widely used for AR Quick Look on iPhone and iPad, product visualization, and lightweight 3D asset delivery. Its main advantages are portability and compatibility with Apple’s ecosystem. Because it is a package, it is best suited for scenes that can be self-contained and optimized for viewing rather than for large-scale production editing.

How to perform the conversion

The best method depends on whether your USD scene is already self-contained and whether you need Apple-compatible packaging. In many cases, the most reliable workflow is to use desktop 3D software or Pixar’s USD tools to prepare the scene, then export or package it as USDZ.

1. Check the USD scene dependencies. Make sure all textures, materials, and referenced assets are available locally. If the USD file points to missing files, the USDZ package will be incomplete.
2. Open the scene in compatible software. Common tools include Apple Reality Converter, Blender with USD support, Autodesk tools, or other 3D applications that can import USD and export USDZ.
3. Export or package as USDZ. In supported software, use the export command, for example File → Export → USDZ or a similar menu path. If the application offers packaging options, enable inclusion of textures and linked assets.
4. Verify the result. Open the .usdz file in a viewer such as Quick Look on macOS/iOS or another USDZ-capable viewer to confirm that geometry, materials, and textures display correctly.

If you prefer a command-line workflow and have Pixar’s USD tools installed, you can also package assets with USD utilities when supported by your setup. The exact command depends on the tool version and the structure of your scene, so the safest approach is to use software that explicitly supports USD to USDZ export.

You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality, compatibility, and limitations

USDZ is not a general-purpose editing format. It is primarily a distribution package, so it is less flexible than editable USD scene files. If your source USD scene uses advanced composition features, external references, or unsupported shaders, some elements may not transfer perfectly.

Important limitations include:

• Texture paths must be resolved and included in the package.
• Not all materials or shaders are supported equally across viewers.
• Animation and variants may work only if the target viewer supports them.
• File size can increase because USDZ bundles all assets into one package.

For best results, keep the scene simple, use widely supported materials, and test the USDZ file in the exact viewer or device where it will be used. If the goal is Apple AR viewing, make sure the model is optimized for Quick Look and that textures are embedded correctly.