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GLBKit

FBX to 3MF Converter

Convert an Autodesk FBX to a 3MF package with geometry and colour for 3D printing. Textures are not written. Runs in your browser.

Drag & drop your FBX file here

or click to browse

Supported Formats

.glb.gltf.obj.fbx.stl.ply.3mf.off.zip

Format Information

Source Format

FBX.fbx

FBX (Filmbox Scene)

FBX is Autodesk's scene format, written by Maya, 3ds Max and MotionBuilder. It is a compact container for a whole DCC scene, which is why it is the usual hand-off format when a model comes back from a modelling or animation package.

What it carries: Meshes, UVs, vertex colours, materials with embedded texture maps, a bone hierarchy, skinning, and keyframe animation clips. Blend shapes and Autodesk-specific property types are not read by this converter.

Open a FBX file in the viewer

Target Format

3MF.3mf

3MF (3D Manufacturing Format)

3MF is the modern replacement for STL, built for 3D printing and industrial additive manufacturing. It is an OPC package — a ZIP container holding XML metadata and mesh parts — which is why it can carry colour and material information that STL cannot.

What it carries: Triangle geometry, per-vertex colour and a base material colour. This converter writes geometry and colour; image textures and the wider 3MF material model are not written, and textures inside an imported 3MF are not read.

Open a 3MF file in the viewer

About this conversion

The print-format upgrade. The FBX scene is triangulated and written into a 3MF package, which carries colour information that STL cannot.

Why convert FBX to 3MF

  • Get colour onto a print that STL could never hold.
  • Move an FBX print job onto the package format newer slicers handle better.
  • Hand over a proper OPC package rather than a flat triangle list with no metadata.

What happens during the conversion

Geometry

Every mesh in the scene is triangulated into a single indexed mesh and written into the 3MF model part with transforms baked in. The package is reloaded and validated before download.

Materials and textures

Colour is what 3MF adds. Per-vertex colours are written when the FBX has them, and otherwise the first material's base colour is used. Textures, normal maps and UVs are not written.

Animation

FBX animation, skinning and morph targets cannot be stored in 3MF, so only the static geometry is written.

Common use cases

  • Getting FBX material colours in front of a printer that mixes filament or resin tints.
  • Migrating an STL-era print workflow onto 3MF.
  • Sharing a print asset with a tool that has dropped STL support.

Limitations of this conversion

  • No image textures, normal maps or UVs in the output.
  • Normals are dropped on the way into the package, so a slicer has to re-derive shading from the faces.
  • Every mesh in the scene is written, hidden or not, because 3MF output here is a single merged mesh with no hidden state.

How to convert FBX to 3MF

Three steps in the browser. Nothing is uploaded to a server, so an unwieldy file is limited only by your own device's memory.

1
STEP 1

Upload your .fbx

A single self-contained .fbx is produced, with its textures embedded.

2
STEP 2

Convert to 3MF

The scene geometry is triangulated and written into a validated 3MF package with colour.

3
STEP 3

Preview in your slicer

Check colour and orientation before printing.

Related tools and formats

Frequently Asked Questions

Questions people ask when turning FBX files into 3MF.

Looking for a different direction? See every supported conversion.