FBX to GLB API

From a proprietary asset format to a web-native single file.

FBX is everywhere in games and DCC pipelines, but it is an Autodesk format — closed, heavy, and completely unsupported by browsers. GLB is its practical successor for delivery: an open standard, a single binary file, and loaded natively by three.js, Babylon.js, <model-viewer> and mobile AR viewers.

Example

curl -X POST "https://apimycad.com/v1/mesh?to=glb" \
  -H "X-API-Key: YOUR_KEY" \
  -F "file=@asset.fbx" \
  -o asset.glb

Uploads up to 50 MB. Conversion is synchronous — the GLB comes back in the response.

FBX is input only

Worth knowing before you design around it: this API reads FBX but does not write it. You can convert FBX into GLB, glTF, OBJ, STL, PLY or DAE, but not the other way around. FBX is a closed format and writing it reliably needs Autodesk's own SDK, which we deliberately do not depend on — that decision keeps this API free of licence fees, and those savings stay out of your bill.

What carries across

• Mesh geometry and the scene's node hierarchy
• Material assignments, mapped onto glTF's PBR model where they correspond
• Multiple objects in one file, kept as separate nodes

FBX supports features glTF has no equivalent for, so complex rigs, custom shaders and engine-specific extensions will not survive the trip intact. For static models and product assets — the usual reason to put something on a web page — the result is what you expect. Check the output before shipping it.

Common uses

• Publishing product or asset models to a website or configurator
• Building AR previews for mobile from an existing game-asset library
• Normalising a mixed FBX/OBJ/DAE library into one delivery format
• Cutting page weight — GLB downloads and parses far faster than FBX

Related conversions

OBJ to GLB API DAE to GLB API STL to GLB API All conversions

Read the API documentation