How can I convert my GLTF file to OFF?

First, click the "Upload..." button and select your GLTF file to upload. Your GLTF file will be uploaded to our servers. When the GLTF to OFF conversion has completed, you can download your OFF file right away.

How long does it take to convert my GLTF to OFF?

Most GLTF to OFF conversions complete in a few seconds for typical furniture-model files (a few MB to ~100 MB). The pipeline runs in your browser for most format pairs — no upload to a server, no roundtrip latency. For SKP and BLEND outputs the conversion runs server-side via the native Blender or SketchUp engine, with a hard 5-minute timeout per conversion; most server-side conversions finish in well under a minute.

What does the GLTF to OFF conversion preserve?

Materials, UV maps, vertex normals, and scene hierarchy are preserved wherever the OFF format supports them. STL is the exception — it is a geometry-only format by design and discards materials and UVs. GLB and GLTF preserve embedded textures inside the file; OBJ produces an accompanying MTL material descriptor; SKP groups components logically with materials applied; BLEND preserves the full Blender scene graph with modifiers.

How does converting GLTF to OFF work?

In order to successfully convert a GLTF formatted file to the OFF format, our converter tools will perform several initial checks to ensure the file provided is indeed a GLTF file. There are many files out there where the file type extension does not match the data contained within the file. Along with these file type checks, our tools will do additional checks to ensure the file is correctly formatted to match the provided file type.

What if I don't have a GLTF file to convert yet?

Browse the FurniMesh 3D furniture library at https://furnimesh.com/library/ — every model exports as GLB, OBJ, SKP, or BLEND, and this converter can transform any of those to OFF. Or generate a custom 3D model from any furniture photo with the Image to 3D AI generator at https://furnimesh.com/image-to-3d/.

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GLTF to OFF Converter

Convert your GLTF files to OFF format for free. No sign up or credit card required.

Convert GLTF files to OFF format quickly and securely in your browser. Or skip the conversion entirely — browse the free 3D furniture library.

Or take a shortcut

No file to convert yet? A few faster paths:

Browse 3D models

Free furniture 3D models — every model exports to GLB, OBJ, SKP, BLEND. Convert from there.

Open library

Image to 3D AI

Generate a textured 3D model from any furniture photo in under 60 seconds.

Try image to 3D

Photorealistic render from a screenshot

Already have a 3D model? Screenshot the viewport and get a photorealistic render in about 30 seconds.

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FAQ

GLTF to OFF Conversion FAQ

Get answers to common questions about converting GLTF files to OFF format. Learn about the conversion process, file compatibility, and best practices.

File Formats

File format information for GLTF and OFF

Detailed information about the source and target file formats, including their capabilities and specifications.

GLTF Format

Extension:GLTF

Full Name:GL Transmission Format

Type:3D Model

Mime Type:model/gltf+json

Format:Binary

Opens With:Blender, MeshLab

glTF (GL Transmission Format): An open, JSON-based file format (.gltf) for efficient 3D model delivery. It supports geometry, materials, and animations, designed for web and cross-platform compatibility.

GLTF Converter Capabilities

When converting 3D model or mesh files using our GLTF converter, we will attempt to convert color materials into a suitable format for use in the converted file.

OFF Format

Extension:OFF

Full Name:Object File Format

Type:3D Model

Mime Type:application/octet-stream

Format:Binary

Opens With:MeshLab, Research Tools

OFF (Object File Format): A simple, open file format (.off) for 3D geometry, storing polygonal meshes with vertices and faces. It’s lightweight, mainly used in research and academic applications.

OFF Converter Capabilities

When converting 3D model or mesh files using our OFF converter, we will attempt to convert color materials into a suitable format for use in the converted file.

Information for converting from GLTF to OFF

About the GLTF to OFF converter

FurniMesh's GLTF to OFF converter runs entirely in your browser using a WebAssembly glTF/3D-mesh pipeline — your file never leaves your tab, and the conversion completes in seconds for typical furniture-model files. Materials, UV maps, and scene hierarchy are preserved wherever the OFF format supports them. There's no sign-up, no watermark, no per-file size cap enforced by the UI — practical limits depend on your browser's available memory.

FurniMesh natively outputs four formats — GLB, OBJ, SKP (SketchUp 2017+), and BLEND (Blender 3.0+). Bridge conversion via this converter additionally produces FBX, STL, GLTF, 3DM (Rhino), IFC, DAE, PLY, OFF, 3DS, and 3MF. Use the converter to bridge between any combination — or skip the conversion step entirely if you don't have a source file yet (the FurniMesh library ships every model in all four native formats pre-rendered).