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cadformats.com/convert/usdz-to-glb

.usdzUSDZ→.glbGLBlossless

Convert USDZ to GLB

Convert USDZ to GLB in your browser. The conversion runs on this page and the file never leaves your computer.

Drop your .usdz file

up to 250 MB · .usdz

Free, and it opens in this tab. Nothing is uploaded, and there's no account to make.

Runs locally · nothing uploaded

Before you convert: what this keeps and what it destroys

Preserved

  • The geometry, triangle for triangle
  • Overall dimensions and proportions
  • Watertightness, where the input is watertight
  • Colour
  • Separate parts and their positions

Destroyed

  • A recorded unit: GLB stores none

↺ the reverse: GLB → USDZ · about .usdz · about .glb · just view it instead

Why people convert USDZ to GLB

The mirror of the conversion most people make, and you need it for the same reason: AR Quick Look on iOS takes USDZ and Android's Scene Viewer takes GLB, so shipping AR on both platforms means shipping both files.

Geometry, colour and the scene hierarchy all come across, and both formats work in metres, so nothing is rescaled and the model is the same physical size in either viewer.

One limitation decides whether this works at all. This site reads the text USDA form of a USD stage, and most exporters write the binary USDC form because it is much smaller. If your USDZ holds a USDC stage the page will say so plainly rather than failing vaguely, and the fix is to re-export with a USDA stage or repackage it with Apple's usdzip.

What you get

You get a binary GLB file containing the same triangles the USDZ file described. No geometry is added, removed or approximated: mesh-to-mesh conversion is a change of container, and this site's tests check that the triangle count comes out identical.

The output uses metres, as required by the glTF specification.

Carried across: supported base or vertex colour, the supported part structure.

The conversion runs in your browser. Your file stays on your computer and is not uploaded.

What to check afterwards

  • USDZ declares its unit in the file. Check the output dimensions in the receiving application, especially when its import settings can override the unit.
  • Coordinates are stored as 32-bit floats. For a part measured in millimetres that's far finer than any machine tolerance. For a model spanning hundreds of thousands of units it isn't.

If you need something this conversion cannot give you

This pair loses very little. GLB carries what USDZ carries, so the main reason to choose a different target is what the receiving software accepts.

Going the other way

Convert GLB back to USDZ. The reverse conversion also works with mesh geometry. It does not reconstruct exact CAD surfaces. Material data and part structure lost in either direction cannot be restored by converting back. Keep the original file for later edits.

How we know this conversion works

This pair was checked against 4 files from the test corpus on 2026-09-04. Each run parses its own output back in and compares the bounding box, the triangle count and, for closed solids, the volume against the input.

A pair that fails those checks doesn't get a page. That's why this site lists 120 conversions and not the several hundred a format-times-format grid would suggest.