Convert 3DM to WRL (Free)
Also converts STL, OBJ, GLB, PLY, USDZ, 3MF from the same file.
Runs in your browser. No upload, no signup, nothing to install.
Also from Innerscene: Circadian Lab, a free lighting calculator for room illuminance, melanopic EML, and glare.
How to convert 3DM to WRL
- 1
Open your .3dm file
Drag it onto the viewer above, or click "Open a 3DM File". Files up to 200 MB open directly; the parse runs in a worker so the page stays responsive.
- 2
Pick VRML97 in the Export menu
Click Export in the toolbar, then WRL (.wrl).
- 3
Download
The .wrl is written in the browser and saved straight to your downloads folder. No queue, no email, no watermark.
What survives the conversion
A file conversion is a translation, and formats do not carry the same things. Here is exactly what moves from 3DM into WRL, and what does not.
| Geometry | Reduced | 3DM stores exact B-rep solids and WRL stores triangles, so the surfaces are tessellated. Curved faces become faceted at the display tolerance, which is fine for visualization, printing and clash checking, but not for further parametric CAD work. |
|---|---|---|
| Colors and materials | Reduced | 3DM can hold material colors and WRL holds per-vertex color, so materials are flattened to that. |
| Layers and structure | Reduced | WRL has named objects but no layers, so each layer becomes a named part instead. |
| Units and scale | Kept | WRL stores an explicit unit, so the model opens at true size without rescaling. |
What the WRL writer emits: VRML97 with an IndexedFaceSet per mesh, IndexedLineSet for linework and PointSet for clouds, classic Material nodes, and per-vertex color where the scene has it. Meters, Y-up, written verbatim.
The source: Rhino 3D Model (.3dm)
Rhino meshes, NURBS surfaces and polysurfaces, SubD, curves, point clouds, layers with their colors, and the file unit system.
The target: VRML97 (.wrl)
The format color 3-D printing bureaus and older analysis tools still ask for.
Opens in: Shapeways and other color print bureaus, MeshLab, Blender, legacy simulation tools.
Your file never leaves your computer
Both the 3DM parser and the WRL writer are JavaScript and WebAssembly running in your own browser tab. There is no upload step, no server-side conversion queue, and no copy of your file anywhere but your machine. That matters for drawings under NDA, for client work, and for anything you would not email to a stranger.
Frequently asked questions
▶Is this 3DM to WRL converter free?
Yes. No signup, no watermark, no per-file limit and no paid tier. Innerscene.
▶Is my 3DM file uploaded anywhere?
No. The file is read with the browser file API and converted in the same tab. Nothing is sent to a server unless you explicitly click Share, which is a separate, opt-in feature.
▶Will my colors and materials survive the WRL export?
3DM can hold material colors and WRL holds per-vertex color, so materials are flattened to that.
▶Do layers and named parts carry into the WRL file?
WRL has named objects but no layers, so each layer becomes a named part instead.
▶Will the WRL open at the right size?
WRL stores an explicit unit, so the model opens at true size without rescaling.
▶How large a 3DM file can I convert?
Up to 200 MB, and the ceiling adapts to how much memory your device reports. The conversion runs on your own hardware, so a desktop with plenty of RAM will handle more than a phone.
▶Can I convert WRL back to 3DM?
Yes, the other direction works too. Bear in mind that anything the first conversion dropped is not restored by converting back. WRL → 3DM
▶Which browsers does it work in?
Chrome, Edge, Firefox and Safari, on Windows, macOS, Linux, iOS and Android. No plugin and no extension.
Convert 3DM to something else
Convert something else to WRL
Or start from the universal 3D viewer.