How to convert FBX to glTF / GLB
FBX is Autodesk's closed scene format, so a browser cannot read it — but the conversion to glTF is well-trodden and free, and it matters because glTF is what web viewers and real-time engines actually want.
Short answer: Simplest free route: Blender → File → Import → FBX, then File → Export → glTF 2.0 (.glb/.gltf). Keep 'Y up' ticked for web viewers. Animation transfers, but skinned rigs with more than four influences per vertex get truncated — glTF allows four.
| Converts in this browser | No — FBX needs the CAD app that owns it |
|---|---|
| Cost | Guide is free; CAD application or plan terms may apply |
| From | FBX — Autodesk FBX |
| To | glTF — glTF 2.0 |
| Steps | 5 |
Why there is no uploader on this page
FBX is a closed format that no browser can read, so an in-page converter would have to send your file to a server. The procedure below does the job properly in the application that owns the format — and where a browser-side route exists, it is linked underneath.
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Converting FBX to glTF, step by step
- 1Simplest free route: Blender → File → Import → FBX, then File → Export → glTF 2.0 (.glb/.gltf). Keep 'Y up' ticked for web viewers.
- 2Command line for batches: Facebook's FBX2glTF, or Autodesk's own converter in the FBX SDK.
- 3In Blender, check the material setup after import: FBX materials rarely map 1:1 onto glTF's metallic-roughness model, so albedo, metalness and roughness usually need setting.
- 4Export GLB (single file) for delivery and .gltf when you need to inspect or edit the JSON.
- 5For web delivery, run glTF-Transform afterwards to resize textures and apply Draco or Meshopt compression.
What to watch out for
- Animation transfers, but skinned rigs with more than four influences per vertex get truncated — glTF allows four.
- FBX units are frequently centimetres while glTF viewers assume metres; set the scale on export.
- Cameras and lights survive only partially; most viewers ignore them anyway.
Autodesk's scene format: meshes plus materials, cameras, lights and animation. The standard hand-off between 3ds Max, Maya, Revit and game engines.
The Khronos open runtime 3D format — JSON plus buffers. The web and game-engine standard for delivering models.
Questions
GLB or glTF for a website?
GLB. One file, no missing-texture problems, smaller over the wire. Keep .gltf for editing.
Why are my textures missing after conversion?
FBX references textures by path. Put the texture folder next to the FBX before importing, or relink in Blender's file browser.
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