Convert 3MF to GLB
Convert a 3MF file to GLB in your browser. Free, no upload, no sign-up.
Convert 3MF files to GLB directly in your browser. The converter parses the 3MF mesh, rebuilds it in memory and writes it out as GLB, keeping every triangle. Nothing is uploaded, there is no file size limit beyond your computer's memory, and the result downloads instantly. GLB is the format web browsers, AR viewers and e-commerce platforms expect; one self-contained file with materials included.
How to convert 3MF to GLB
- 1Drop your 3MF file
Drag a .3mf file onto the box above or click to choose one. Slicer project files (.3mf from Bambu Studio or PrusaSlicer) are supported; embedded print settings are ignored, geometry and colors are read.
- 2Check the preview
The model renders in 3D so you can confirm it loaded correctly. Dimensions, volume and triangle count are shown next to it; open edges are flagged if the mesh is not watertight.
- 3Download the GLB
Adjust the export options if needed and click download. Meshes without materials get a neutral gray PBR material so the file renders correctly in viewers.
What is a 3MF file?
3MF is the modern replacement for STL, published by the 3MF Consortium (Microsoft, Autodesk, HP, Prusa and others). It is a ZIP archive containing XML that stores units, colors, materials, multiple objects and print settings. Slicers such as Bambu Studio and PrusaSlicer use it as their project format.
Commonly used by: Bambu Studio, PrusaSlicer, Cura, Windows 3D Builder, Fusion 360
Slicer project files (.3mf from Bambu Studio or PrusaSlicer) are supported; embedded print settings are ignored, geometry and colors are read.
What is a GLB file?
GLB is the binary container for glTF 2.0, the "JPEG of 3D" maintained by the Khronos Group. A single .glb file bundles geometry, PBR materials, textures and animations, and is the standard format for 3D on the web and in AR viewers.
Commonly used by: web viewers (three.js, model-viewer), AR on iOS and Android, Sketchfab, game engines
GLB is the format web browsers, AR viewers and e-commerce platforms expect; one self-contained file with materials included.
3MF vs GLB
| 3MF | GLB | |
|---|---|---|
| Full name | 3D Manufacturing Format | Binary glTF |
| Encoding | ZIP container | Binary |
| Geometry type | Triangle mesh | Triangle mesh |
| Colors | Yes | Yes |
| Textures | Yes | Yes |
| Materials | Yes | Yes |
| Stores units | Yes | Yes |
| Multiple objects | Yes | Yes |
| Typical use | Bambu Studio, PrusaSlicer, Cura | web viewers (three.js, model-viewer), AR on iOS and Android, Sketchfab |