Free · Browser-side · No sign-up

Convert STP to USDZ Online

Convert STEP (Standard for the Exchange of Product Data) files to Universal Scene Description (USDZ), entirely in your browser. No upload, no sign-up. Your files never leave your device.

No sign-up required 100% client-side Up to 100 MB

STPUSDZ

Drop your STP file here

or click to browse from your computer (up to 100 MB)

Try with a sample modelBracketBracket by Polyforge · CC0 1.0 Universal

CAD bracket assembly — typical STEP engineering model for format conversion testing.

$ apple ar quick look

USDZ is Apple's format for augmented reality. Converting STEP to USDZ lets users preview engineering models in real-world scale on iPhone and iPad.

$ pbr material model

STEP colors map to USD's physically based material system, producing realistic rendering on Apple devices.

$ single file archive

USDZ packages geometry, materials, and textures into one file, simplifying distribution of converted CAD models.

Also convert from STP

STP → GLB STP → GLTF STP → OBJ STP → FBX STP → STL STP → PLY STP → DAE STP → 3MF

Other ways to get USDZ

GLB → USDZ GLTF → USDZ OBJ → USDZ FBX → USDZ STL → USDZ PLY → USDZ 3DS → USDZ DAE → USDZ 3MF → USDZ

── STP → USDZ ──

How to Convert STP to USDZ

Convert your CAD STEP file to USDZ for AR viewing on Apple devices.

Upload STP

Drag and drop or select your .stp file. STEP stores precise engineering geometry using boundary representation as defined by ISO 10303.

Processing

Conversion runs entirely in your browser. B-rep surfaces are tessellated into meshes with PBR materials and packaged as a USDZ archive. Your data never leaves your device.

Download USDZ

Get your USDZ file ready for AR. Open it on any Apple device to view your engineering model at real-world scale in augmented reality.

$ why_convert

Why convert STEP to USDZ?

STEP is the international standard for CAD data exchange, storing precise boundary representation geometry used in engineering and manufacturing. While STEP preserves exact surface mathematics, it cannot be viewed on mobile devices or used in augmented reality experiences. Presenting engineering designs to clients, stakeholders, or field teams often requires formats that render on consumer hardware without specialized software.

USDZ is Apple's format for 3D content on iOS, iPadOS, and visionOS, built on Pixar's Universal Scene Description. Converting STEP to USDZ tessellates CAD geometry into optimized meshes with PBR materials, packaged into a single-file archive. The result opens directly in Safari, Messages, Mail, and AR Quick Look on Apple devices, allowing users to place engineering models in their physical environment at real-world scale for design review and client presentations.

Key advantages of USDZ over STEP

AR Quick Look

View models in augmented reality on iPhone and iPad instantly.

No app required

Opens natively in Safari and iOS system apps.

PBR materials

Physically based rendering produces realistic lighting and reflections.

Single file

Self-contained archive is easy to share via email or messaging.

visionOS ready

USDZ is the primary 3D format for Apple Vision Pro content.

Real-world scale

Models appear at correct physical dimensions in AR view.