Add your USDZ file
Drop one or more .usdz 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.
USDZ to 3MF
Converting a .usdz mesh to .3mf 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 USDZ 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 Universal Scene Description ZIP to 3D Manufacturing Format
Converting a .usdz mesh to .3mf rewrites the same triangles for a different toolchain. 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.
3MF, the 3D Manufacturing Format with extension .3mf, is the modern replacement for STL in 3D printing. One .3mf file carries a complete print job — watertight meshes with declared units, colors, materials, multiple objects, and even slicer settings — inside a compact ZIP-based package. For this route the practical draw is fixes STL's canonical gaps — units, color, materials, manifold guarantees — in one open, royalty-free specification and zIP compression makes files far smaller than equivalent STL — balanced against ecosystem support outside 3D printing is still thinner than OBJ or STL, which is worth knowing before you commit a large batch.
Why convert USDZ to 3MF?
The practical trigger for this conversion is usually a mismatch: with .usdz, uncompressed by design, so packages are considerably larger than a compressed equivalent. Switching to .3mf buys you fixes STL's canonical gaps — units, color, materials, manifold guarantees — in one open, royalty-free specification, which is why it is the better fit for saving complete print projects with slicer settings preserved. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
USDZ vs 3MF at a glance
| Aspect | Universal Scene Description ZIP (.usdz) | 3D Manufacturing Format (.3mf) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Vector — resolution-independent geometry instead of pixels |
| How it stores data | the package is a ZIP with STORED entries only — never deflated — so readers can memory-map the payload in place | an OPC package — the same ZIP-with-XML convention as .docx — whose 3D payload is an XML model part |
| Strongest at | publishing an AR model that opens directly on iPhone and iPad with no app | saving complete print projects with slicer settings preserved |
| Weak spot | uncompressed by design, so packages are considerably larger than a compressed equivalent | ecosystem support outside 3D printing is still thinner than OBJ or STL |
| Metadata | uSD layer metadata — up-axis, metres-per-unit, default prim — is present in the package; the geometry-only targets cannot carry it | the core specification defines metadata elements for title, designer, description, license, and creation date, and vendor extensions attach slicer and production settings |
Pick 3MF as the output
Select .3mf in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if 3MF 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 3MF file. Outputs keep the original filename with the .3mf extension.
USDZ to 3MF questions, answered
Will converting USDZ to 3MF lose quality?
Since usdz is container-oriented and 3mf is vector-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .3mf itself requires.
Is it private to convert USDZ files here?
Yes — the .usdz 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 3MF file work?
Windows has treated .3mf as a first-class format since Windows 10, with built-in preview support, and every major slicer now reads and writes it — several use it as their default project format. CAD support is solid in Fusion 360, SolidWorks, and FreeCAD, while general 3D graphics tools like Blender need an importer add-on.
Will the 3MF file be bigger or smaller than my USDZ?
It depends on the content: an OPC package — the same ZIP-with-XML convention as .docx — whose 3D payload is an XML model part. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my USDZ file?
In .usdz, uSD layer metadata — up-axis, metres-per-unit, default prim — is present in the package; the geometry-only targets cannot carry it. 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 3MF back to USDZ?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .usdz → .3mf → .usdz is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.