Convert FBX to GLB

FBX to GLB, converted entirely in your browser — the usual step between a desktop 3D tool and anything that runs on the web.

Drop your FBX file here, or click to chooseTextures embedded in the FBX come across automatically. Nothing is uploaded — the conversion runs entirely in your browser.Output units

What breaks when you convert FBX to GLB

Centimetres in, metres out

FBX counts in centimetres and glTF is defined in metres, a factor of one hundred that most converters pass straight through. That is why FBX models so often turn up in a web viewer as an enormous wall of geometry with the camera somewhere inside them. We apply the correction and report the finished dimensions.

Skinning and animation are not carried through

This converter handles static geometry. Bones, skin weights and animation tracks are dropped, so anything rigged arrives in its bind pose. Furniture, buildings and props are unaffected; characters and machinery need a tool that handles rigs.

Specular workflows do not map cleanly onto metallic-roughness

FBX materials describe surfaces with a specular colour and exponent. glTF describes them with metalness and roughness. These are different models of how light behaves, not two spellings of the same thing, so the conversion is an approximation by nature. Diffuse colour and textures transfer faithfully; anything defined by its highlight will need a look before you publish it.

Instancing is flattened

Repeated objects that FBX stored once and referenced many times are written out in full, once per placement. On a scene built from a kit of parts this can multiply the triangle count dramatically, which matters more for GLB than most targets because the file is usually about to be downloaded over somebody’s mobile connection.

Questions

Is GLB the right format for the web?: Yes. It is a single self-contained file with textures inside it, and every current browser-based viewer reads it.
Are my textures included in the GLB?: If they were embedded in the FBX, yes — the GLB we write is self-contained. Textures the FBX only linked to by path cannot be recovered, and we name them in the report.
How large a file can I convert?: There is no cap from us. Your browser has a memory ceiling, and we warn you before starting when a file looks likely to hit it.
Can I get USDZ instead, for iPhone AR?: Yes, there is a separate FBX to USDZ converter. Use GLB for the web and Android, USDZ for AR Quick Look on Apple devices.