FBX to OFF Converter
Convert an Autodesk FBX to a plain OFF geometry file: the scene mesh as vertices and triangles. No materials. Runs in your browser.
Drag & drop your FBX file here
or click to browse
Supported Formats
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 viewerTarget Format
OFF.off
OFF (Object File Format)
OFF is a minimal, human-readable geometry format from the Geomview project: a header line, a count line, then a list of vertex positions and a list of polygon vertex lists. There is deliberately nothing else in the specification.
What it carries: Vertex positions and face index lists, written out as triangles. No normals, no colours, no UVs, no materials, no textures and no animation.
Open a OFF file in the viewerAbout this conversion
The minimum viable export from a DCC scene. The FBX geometry is triangulated, moved into world space and written as a plain OFF vertex and face list.
Why convert FBX to OFF
- Provide input to a computational-geometry library that reads OFF.
- Create a small, dependency-free surface file for a custom loader or a test.
- Produce a text file that is easy to diff for shape review.
What happens during the conversion
Geometry
Every mesh in the scene is triangulated, transformed into world space and merged into a single vertex list with a face list. The output is re-parsed and its counts checked before download.
Materials and textures
Nothing. OFF has no material, texture, colour, UV or normal field, so the result is pure surface geometry.
Animation
FBX animation, skinning and morph targets have no representation in OFF. A single static pose of the scene is written.
Common use cases
- Taking a scene out of FBX and into a computational-geometry library that reads OFF.
- Producing a bare surface for a render test where the FBX's materials are irrelevant.
- Reviewing an FBX as a text diff, so a geometry change is visible without a DCC tool.
Limitations of this conversion
- Everything except triangles and positions is lost: normals, UVs, vertex colours, materials, textures and animation.
- Every mesh in the scene is written and object boundaries are merged away, because OFF is a single surface with no object structure.
How to convert FBX to OFF
Three steps in the browser. Nothing is uploaded to a server, so an unwieldy file is limited only by your own device's memory.
Upload your .fbx
A single .fbx is read, with no sidecar files to gather.
Convert to OFF
The scene geometry is triangulated, baked into world space and written as a validated OFF file.
Use the .off in your geometry tool
Vertices and faces only, because OFF has nowhere to store the FBX's normals or materials.
Related tools and formats
Other conversions from this format
Check the file in a viewer
Frequently Asked Questions
Questions people ask when turning FBX files into OFF.
Looking for a different direction? See every supported conversion.