What is STEP to glTF used for?

STEP is a precise CAD format; glTF / GLB is the standard for web and real-time 3D. Converting STEP to glTF lets you display engineering models in browsers, Three.js, mobile and AR/VR.

glTF or GLB — which should I pick?

glTF is JSON text and may reference external assets; GLB is a single binary file. For distribution, GLB is usually the better choice.

Is the STEP to glTF conversion free and online?

Yes. Upload your .step / .stp file and choose glTF or GLB as the target — no software to install.

STEP to glTF中文

STEP to glTF Converter Online

Convert STEP (.step / .stp) CAD models into web-ready glTF / GLB for browsers, Three.js, mobile and AR/VR. Done online in WO3D — no installation required.

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Built for the web

glTF / GLB renders natively in browsers, ideal for embedding CAD on the web.

Lightweight delivery

Binary glTF is compact and fast to load, even for large assemblies.

No install

No CAD software needed — upload STEP in the browser and get glTF out.

When to use it

When engineering data in STEP needs to appear on a website, product page or online proposal, glTF / GLB is the right carrier — no plugins and smooth on mobile.

Share a glTF link instead of sending raw CAD: lighter, faster and easier for clients and collaborators to open.

Need engineering edits?

glTF is a mesh format and is not meant for precise CAD editing. To stay in a standard CAD workflow, keep the original STEP.

glTF is for viewing; STEP is for editing.

Prefer GLB

For distribution, export GLB: a single file bundling geometry and materials, easy to upload, transfer and embed.

Use glTF (JSON) when you need to further edit materials or the scene.