Convert STL to USDZ Online — Free
Upload a Stereolithography file and download it as Universal Scene Description (Zip). Runs entirely in your browser — no server uploads.
About These Formats
Stereolithography
STL stores only triangulated geometry — no colors, textures, or animations. It is the de-facto standard for 3D printing slicers and CAD software.
Used with
3D printing slicers (Cura, PrusaSlicer, Bambu Studio), CAD tools, rapid prototyping workflows.
Universal Scene Description (Zip)
USDZ is Apple's zipped USD format for augmented reality. It is the native format for iOS/macOS AR Quick Look, enabling users to place 3D objects in the real world.
Used with
iOS AR Quick Look, Safari, Shopify AR, Apple Vision Pro, and e-commerce AR previews.
When to Convert STL to USDZ
Convert STL to USDZ when you need an Apple AR Quick Look experience. USDZ is the native 3D format for iOS and macOS — users can tap a link in Safari to place your model in the real world. It is also supported by Shopify, Reality Composer, and Apple Vision Pro.
Other STL Conversions
Frequently Asked Questions
How do I convert STL to USDZ?
Upload your .stl file using the tool above, confirm the source format is set to STL and the target is USDZ, then click Convert. The file processes in your browser and you can download it immediately.
Does converting STL to USDZ preserve textures?
Yes. Converting to USDZ preserves PBR materials and embedded textures from the source file.
Is this converter free?
Yes, completely free. No account, no usage limits, no hidden fees.
Are my files uploaded to a server?
No. All processing happens locally in your browser using WebGL. Your files never leave your device.