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GLBKit

OFF to FBX Converter

Convert a bare OFF geometry file to a self-contained FBX with computed normals, ready to open in a DCC tool. Runs in your browser.

Drag & drop your OFF file here

or click to browse

Supported Formats

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

Format Information

Source 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 viewer

Target 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

About this conversion

Bare geometry into Autodesk's scene format. The OFF vertices and faces are written as an FBX mesh with computed normals and a default material, ready to open in Maya, 3ds Max or Blender.

Why convert OFF to FBX

  • Open a Geomview OFF file in a DCC tool for modelling or rendering.
  • Take minimal geometry into an asset pipeline that expects FBX.
  • Get a self-contained scene file you can hand to a 3D artist.

What happens during the conversion

Geometry

The vertex positions and face list are written as a single FBX mesh node, with faces triangulated and normals computed from the triangles.

Materials and textures

None from the source. OFF has no materials, colours or UVs, so the FBX is written with the fixed material the OFF reader attaches on load — a lime green (#B8FF3B) standard material. Appearance has to be authored in the DCC tool.

Common use cases

  • Modelling or rendering a bare geometry file in a DCC tool.
  • Taking minimal geometry into an FBX-based asset pipeline.
  • Producing a self-contained scene file for a vendor.

Limitations of this conversion

  • OFF carries no texture or colour data at all, so a material has to be built in the target tool.
  • OFF has no object structure, so the result is a single mesh.
  • FBX is a verbose container, so a tiny OFF file becomes a much larger FBX.

How to convert OFF to FBX

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 .off

The plain-text OFF file is read directly, and vertex normals are derived from the face winding before the .fbx is written.

2
STEP 2

Convert to FBX

Geometry is written as an FBX mesh with computed normals and a default material.

3
STEP 3

Import the FBX in your DCC tool

Assign materials there, since the source had none.

Related tools and formats

Frequently Asked Questions

Questions people ask when turning OFF files into FBX.

Looking for a different direction? See every supported conversion.