Add your GLB file
Drop one or more .glb files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
GLB to USDZ
Converting a .glb mesh to .usdz rewrites the same triangles for a different toolchain. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop GLB files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting glTF binary mesh to Universal Scene Description ZIP
Converting a .glb mesh to .usdz rewrites the same triangles for a different toolchain. A .glb file is the binary packaging of glTF 2.0: JSON scene description, mesh buffers, and optional textures packed into one little-endian container with a fixed header and typed chunks. It is the usual way to ship a self-contained realtime 3D asset without sidecar .bin files.
A .usdz file is a single-file package containing a USD scene together with every texture and asset it references. It is an uncompressed ZIP archive with strict alignment rules, so its contents can be read straight from disk without unpacking — which is what makes it viable as a mobile AR format. For this route the practical draw is one file carries the whole scene, textures included — no missing-asset problems and native, zero-install rendering across Apple platforms — balanced against uncompressed by design, so packages are considerably larger than a compressed equivalent, which is worth knowing before you commit a large batch.
Why convert GLB to USDZ?
The practical trigger for this conversion is usually a mismatch: with .glb, scene graph, materials, and animations are richer than many converters preserve. Switching to .usdz buys you one file carries the whole scene, textures included — no missing-asset problems, which is why it is the better fit for publishing an AR model that opens directly on iPhone and iPad with no app. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
GLB vs USDZ at a glance
| Aspect | glTF binary mesh (.glb) | Universal Scene Description ZIP (.usdz) |
|---|---|---|
| Format type | Vector — resolution-independent geometry instead of pixels | Container — quality depends on the codecs and settings inside |
| How it stores data | begins with a 12-byte header (magic glTF, version 2, total length) followed by a JSON chunk and usually one BIN chunk | the package is a ZIP with STORED entries only — never deflated — so readers can memory-map the payload in place |
| Strongest at | publishing web and AR models that must load from one file | publishing an AR model that opens directly on iPhone and iPad with no app |
| Weak spot | scene graph, materials, and animations are richer than many converters preserve | uncompressed by design, so packages are considerably larger than a compressed equivalent |
| Metadata | asset generator and copyright fields live in the JSON asset object; richer metadata usually rides in extras or vendor extensions | uSD layer metadata — up-axis, metres-per-unit, default prim — is present in the package; the geometry-only targets cannot carry it |
Pick USDZ as the output
Select .usdz in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if USDZ is selectable, the route is real and validated.
Convert on your device
Press Convert. The mesh is parsed, retriangulated where needed, and rewritten locally with full validation.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid USDZ file. Outputs keep the original filename with the .usdz extension.
GLB to USDZ questions, answered
Will converting GLB to USDZ lose quality?
The conversion is exact at the resolution you rasterize to — vectors have no pixels until they are drawn. Pick dimensions that match the largest size you will display, because unlike .glb, a .usdz raster cannot be enlarged cleanly afterwards.
Is it private to convert GLB files here?
Yes — the .glb file is processed inside your browser tab and never uploaded. The mesh is parsed, retriangulated where needed, and rewritten locally with full validation. Close the tab and the file is gone from memory.
Where will the USDZ file work?
iOS and macOS render USDZ natively through AR Quick Look and Preview; Blender, Maya, Houdini, Omniverse and Adobe Aero import it. Android relies on separate viewers and generally prefers glTF. Novus Convert both reads and writes USDZ locally: it is the output of eleven mesh routes as well as an input of its own, which is why promoting it unblocked far more pages than its own.
Will the USDZ file be bigger or smaller than my GLB?
It depends on the content: the package is a ZIP with STORED entries only — never deflated — so readers can memory-map the payload in place. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my GLB file?
In .glb, asset generator and copyright fields live in the JSON asset object; richer metadata usually rides in extras or vendor extensions. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.
Can I convert USDZ back to GLB?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .glb → .usdz → .glb is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.