Free FBX to GLB Converter
Lightning-fast FBX to GLB conversion — 100% in your browser. Your files never leave your device. Free, no watermark, no sign-up.
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Supports GLB, GLTF, OBJ, STL, FBX, PLY
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Skip the search — generate a model from text or an image, then convert it to FBX or any other format in one workflow.
Generate → convert — all on fast3d.org.
FBX vs GLB
See what transfers when converting between these two formats.
| Feature | FBX | GLB |
|---|---|---|
| Geometry | ||
| Textures | ||
| Materials | ||
| Animation | ||
| Rigging |
All features supported by FBX are preserved in GLB.
Why convert FBX to GLB?
Ship rigged characters to the web
Three.js, model-viewer, and Babylon.js load GLB natively, including skeletons and skinning animation. FBX is unsupported in browsers without plugins.
AR and WebXR deployment
Apple Quick Look and Google Scene Viewer expect GLB. Convert FBX assets before pushing them into AR experiences.
Open FBX without Autodesk tools
FBX requires Maya, 3ds Max, or MotionBuilder to edit. GLB works in any modern browser, Blender, or game engine — the open format unlocks your asset.
Tips for FBX → GLB
Rigs and animation are preserved
GLB supports skeletons, skin weights, and keyframed or skinned animation. Your FBX rig comes through intact.
Use binary FBX when possible
Binary FBX (.fbx in binary format) converts faster than ASCII FBX. Check your exporter settings in Maya or 3ds Max.
Inspect textures after conversion
FBX embeds textures in some export modes and references external files in others. Verify all textures transferred — open the GLB in model-viewer or Blender.
Watch for FBX version issues
FBX has many versions (2014, 2018, 2020, etc.). Older versions usually convert fine; bleeding-edge versions occasionally have parser gaps.
Common issues when converting FBX to GLB
Animation does not play in the GLB
Fix
Some FBX files store animation on a separate Action that does not auto-link to the armature. Open the FBX in Blender first, ensure the action is attached, then re-export as FBX or convert via Blender's GLB exporter.
Textures look wrong or missing
Fix
FBX can embed textures or reference them externally. If your FBX uses external textures, Fast3D cannot fetch them — re-export the FBX from Maya/3ds Max with 'Embed Media' enabled, or convert via Blender.
Rig imports without skin weights
Fix
Older FBX versions (pre-2014) sometimes lose skin weight data during export. Re-export from Maya/3ds Max with a more recent FBX version. As a fallback, run the conversion through Blender's FBX importer + GLB exporter.