Choose a GLTF file
Drop your GLTF model into the converter or select it from your device.
3D ConverterGLTF to 3MF
Runs locally in your browser
GLTF to 3MF Converter
Convert GLTF to 3MF directly in your browser, then inspect and download the result. Geometry-only 3MF via STL. Materials, colors and animation are discarded; verify millimeter scale in your slicer.
Geometry-only 3MF via STL. Materials, colors and animation are discarded; verify millimeter scale in your slicer.
Drop your GLTF file here
or choose a file from your device
Up to 100 MB total. Select accompanying textures, .bin and .mtl files together with the model. External URLs are not fetched.
Output format
3MF
Local conversion — the file stays on this device
How to convert GLTF to 3MF
Validate and convert
The converter checks the source format before processing the model geometry.
Download the 3MF
Save the generated 3MF file and open it in your preferred 3D application.
Browser conversion
How GLTF becomes 3MF
Source fileGLTF
Browser conversion3D
Output file3MF
Geometry-only 3MF via STL. Materials, colors and animation are discarded; verify millimeter scale in your slicer.
Data map
What survives GLTF to 3MF
This map describes the exported result, not the original source file. Review every amber item in the receiving application before relying on it.
GeometryPreserved
MaterialsNot retained
TexturesNot retained
Animation & riggingNot retained
Units & orientationReview
CAD featuresNot retained
About GLTF to 3MF conversion
Geometry-only 3MF via STL. Materials, colors and animation are discarded; verify millimeter scale in your slicer.
Conversion quality
Printing formats are geometry-first. Confirm units, normals, non-manifold edges and wall thickness in your slicer before fabrication.
Related converters
3D ConverterBefore you convert
What is preserved when converting GLTF to 3MF?
Geometry-only 3MF via STL. Materials, colors and animation are discarded; verify millimeter scale in your slicer.
When is 3MF the right output format?
Choose this output when preparing a static model for a slicer or 3D-print workflow; confirm units and watertightness before printing.
What should I check after converting GLTF to 3MF?
Printing formats are geometry-first. Confirm units, normals, non-manifold edges and wall thickness in your slicer before fabrication. Open the downloaded file in the application you plan to use. Check scale, orientation, mesh completeness and the format-specific limits described above before printing, manufacturing or production use.
Where is my model processed?
Available converters process files in your browser. Saving to the workspace stores a GLB copy in this browser's local database; clearing site data removes it.