Rhino 3dm file import/export support

We’ve just added full support for Rhino’s 3DM format – import and export.
You can now convert Rhino 3DM files to any of our 3D formats like FBX, OBJ, STL, GLB, and more – all in your browser, with no downloads or plugins needed.

Need to convert 3DM to GLB or FBX? Want to open a Rhino file without Rhino? Now you can.

What is a 3DM file?

3DM is the native file format of Rhinoceros 3D (Rhino), a CAD application widely used in architecture, industrial design, jewelry, and engineering. The format is based on NURBS geometry, which allows it to store high-precision curves and surfaces – far beyond what polygon mesh formats like OBJ or STL can handle.

Rhino 3DM files often serve as the foundation for 3D printing, product prototyping, and architectural visualization.

Why convert 3DM files?

You might want to:

- Convert Rhino files to GLB or FBX for use in real-time 3D engines like Unity or Unreal.
- Export 3DM to STL or OBJ for 3D printing workflows.
- Convert from 3DM to formats like DAE, PLY, or 3DS to share with collaborators who don’t use Rhino.
- Convert without having Rhino installed – perfect for quick previews or repurposing assets.

Until now, doing this usually meant owning a copy of Rhino or using a complicated chain of tools. With Convert3D, it’s instant and browser-based.

Online Rhino Converter – Free and Private

Convert3D now supports:

✅ 3DM to FBX
✅ 3DM to OBJ
✅ 3DM to GLB / GLTF
✅ 3DM to STL, DAE, 3DS, PLY, and more
✅ Other formats to Rhino 3DM – like converting FBX or GLB into Rhino format

All conversions happen locally in your browser, using WebAssembly. That means:

- No cloud uploads
- No plugins
- No risk of file leaks
- Works on Windows, macOS, and Linux – as long as you have a modern browser

How to convert Rhino 3DM files

1. Go to Convert3D.org
2. Drag in your 3DM file
3. Choose your output format (e.g. FBX, GLB, OBJ, STL)
4. Download the result

It works the other way too: drop in an OBJ, FBX, or STL file and export to Rhino’s `.3dm` format instantly.

Supported Rhino conversion workflows

Here are some common 3DM conversions you can now do online:

✅ Convert 3DM to GLB (for web or AR)
✅ Convert 3DM to FBX (for Unity or Unreal)
✅ Convert 3DM to STL (for 3D printing)
✅ Convert OBJ to 3DM (for reverse workflows)
✅ Convert FBX to 3DM (when Rhino users need an editable format)

Start converting Rhino files today

Rhino 3DM is one of the most important CAD formats in the design and engineering world – and now it's fully supported in Convert3D.

Whether you’re an architect, engineer, designer, or developer, Convert3D makes it easy to bridge the gap between precision CAD and modern 3D workflows.

👉 Try it now on Convert3D.org