Tools · 3D Converter

Convert GLB to USDZ for AR

USDZ is the format Apple uses for AR Quick Look. The converter writes a USDZ with USD Preview Surface materials and PNG textures, at real size and standing on the floor.

Your files never leave your device

Drop a file to see it here.

Convert to

FBX is not offered as output: browsers cannot write clean FBX files. Every Grab3D library model comes with a ready FBX download. Browse models

3D printing preset: millimetres, Z-up, origin at the bottom center

STL stores geometry only. All visible parts are merged into one binary STL.

Up axis Unit

Origin Recompute normals (smooth, sharp edges above 30°) Simplify materials (base color and color texture only) Bake colors and textures into vertex colors

Read the source as

Up axis of the source Unit of the source

Auto uses the file information: STL and 3MF are millimetres Z-up, FBX uses its unit scale, everything else metres Y-up.

How it works

Drop a GLB or glTF. Real size matters in AR, so check the dimensions in the info panel.
Keep the origin at bottom center, so the model stands on the floor in AR.
Convert and download the USDZ. Open it on an iPhone or iPad to place it in your room.

What is kept and what to watch

The USDZ is static: skeletons and animations are not included.
Textures are limited to 2048 pixels per side, which keeps the file light for phones.
Double sided materials are written single sided.

Other conversions

Frequently asked questions

Does the USDZ work in AR Quick Look?

The file is written with the Quick Look settings of the three.js USDZ exporter, and the converter checks that it opens again. We could not test every iOS version, so try it on your device before you publish it.

Why is my model too big in AR?

AR uses real metres. If the source was made in centimetres, set the source unit before converting.

Are animations supported?

No. The exporter writes static models only. Library models on Grab3D come with a ready USDZ download.