Convert 3DM to GLB.
Free. In your browser.
Rhino 3DM to GLB — convert instantly.
Processed locally in your browser.
What is 3DM?
3DM is the native file format for Rhinoceros 3D (Rhino), a NURBS-based modeling application. 3DM files store precise NURBS surfaces, curves, meshes, and render materials. The format is based on the open-source openNURBS toolkit.
Who uses 3DM?
Primarily used in industrial design, architecture, jewelry design, marine design, and automotive styling. Rhino is popular among designers who need precise, mathematically defined surfaces.
Why convert 3DM to GLB?
Web browsers cannot render NURBS surfaces directly. Converting to GLB tessellates NURBS into triangle meshes that can be displayed in any browser. This is essential for sharing Rhino designs on the web or embedding them in websites.
How it works
Drop your .3dm file
Drag and drop or click to select your 3DM model.
Auto-convert & optimize
Trice converts 3DM to GLB and applies meshopt compression — all in your browser.
Download GLB
Preview the result in Studio and export a production-ready GLB file.
Frequently asked questions
NURBS surfaces are tessellated (converted to triangle meshes) during conversion. The visual appearance is preserved, but the mathematical NURBS representation is replaced with polygons. This is necessary for web rendering.
Materials are converted to PBR format. Layer structure is preserved as separate objects in the GLB hierarchy, so you can still toggle visibility in Trice Studio.
The converter supports 3DM files from Rhino 5 and newer (3DM version 5+). Older versions may not be fully compatible.
The tessellation produces meshes with sufficient detail for web visualization. For extremely detailed surfaces, file sizes may be larger — Trice's optimization will help reduce the output size.
Other formats
More than a converter
Trice is a full 3D studio — optimize, share, and embed interactive 3D scenes on the web.
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