Free Online GLB to FBX Converter
Convert GLB files to FBX for Unity, Unreal Engine, Maya, and 3ds Max. Preserve materials and animations. Free, fast, no sign-up.
How to Convert GLB to FBX
Upload Your GLB File
Drag and drop your .glb file onto the converter above. The tool parses the GLB binary and extracts geometry, materials, and textures.
Automatic Conversion
The converter transforms your GLB data into FBX format, suitable for Unity, Unreal Engine, Maya, 3ds Max, and Blender.
Download Your FBX
Once complete, download your FBX file and import it into your game engine or 3D animation software.
Why Choose Our Converter
Free & No Sign-Up
Convert GLB to FBX for free with no registration, no watermarks, and no hidden costs.
Game Engine Compatible
FBX is the industry standard for Unity and Unreal Engine. Import the converted file directly into your game project.
Material Preservation
PBR materials from the GLB file are transferred to FBX material format for use in desktop 3D software.
Animation Support
GLB animations (skeletal, morph targets) are transferred to FBX, which natively supports animation data.
2 Ways to Convert GLB to FBX
Pick based on whether you need quick conversion or full animation control.
Online GLB to FBX Converter (This Tool)
Best for: quick conversion
- Drag and drop your .glb file.
- Wait for the automatic conversion.
- Download the FBX file.
Pros: Free, no software install, works on any device.
Cons: Requires internet. Some PBR material properties may not transfer perfectly to FBX.
Blender (Free Desktop Software)
Best for: material and animation editing
- Open Blender and import GLB (File > Import > glTF 2.0).
- Verify materials and animations.
- Go to File > Export > FBX (.fbx).
- Configure export settings and click Export.
Pros: Free. Full control over FBX export settings, materials, and animation data.
Cons: Requires installing Blender.
Quick Checks Before You Convert
GLB → FBX transfers geometry, materials, and animations. Review these items for a clean conversion.
PBR Material Conversion
GLB uses PBR (metallic-roughness) materials. FBX supports a different material model. Some PBR properties may not map directly. Use Blender for precise material control.
Animation Data
GLB supports skeletal animations and morph targets. FBX also supports these. Verify that animations transfer correctly after conversion.
Scale Units
GLB uses meters by default. FBX typically uses centimeters. Check the scale in your target software (Unity and Unreal have different default unit settings).
Texture Embedding
GLB embeds textures in the binary. FBX can embed or reference textures externally. Check whether your target software requires embedded textures.
GLB vs FBX Format Comparison
| Feature | GLB | FBX |
|---|---|---|
| Full name | glTF Binary | Autodesk FBX |
| Maintained by | Khronos Group | Autodesk |
| Structure | Binary container | Proprietary binary |
| PBR materials | Yes (metallic-roughness) | Limited (engine-dependent) |
| Animations | Yes | Yes |
| Skeletal rigging | Yes | Yes |
| Cameras / lights | Yes | Yes |
| Web native | Yes (Three.js, WebGL) | No (requires conversion) |
| Primary use | Web 3D, AR/VR, mobile | Game engines, animation |
| License | Open (Royalty-free) | Proprietary (free SDK) |
Fixing Common Issues After Conversion
Typical errors after GLB → FBX and how to resolve them.
FBX materials look different in game engine
GLB PBR materials use metallic-roughness. FBX/FBX materials use a different model. Use Blender to convert materials to the target engine's material system (e.g., Unity Standard, Unreal Master Material).
Animations are missing or broken
Verify the GLB contains animation data before conversion. If animations exist but don't transfer, use Blender to import the GLB, check the animation in the Action Editor, then export FBX with 'Bake Animation' enabled.
Model scale is wrong in Unity or Unreal
GLB uses meters; FBX typically uses centimeters. In Unity, adjust the Mesh Factor in import settings. In Unreal, set Scale to 100 (centimeters).
Textures are missing in FBX
GLB embeds textures, but FBX export may not embed them by default. Use Blender's FBX export with 'Path Mode: Copy' and 'Embed Textures' enabled.
What Is a GLB File?
GLB is the binary version of glTF (GL Transmission Format), a 3D file standard maintained by the Khronos Group. It packages geometry, PBR materials, textures, animations, and scene data into a single compact binary file.
Often described as the "JPEG of 3D," GLB is the standard format for web-based 3D delivery. It loads natively in Three.js, Babylon.js, Google Model Viewer, Microsoft Paint 3D, and Facebook 3D Posts. GLB files are self-contained — no external resources needed.
GLB vs FBX: why convert?
GLB is optimized for web delivery with PBR materials and compact binary packaging. FBX is the industry standard for game development and 3D animation, natively supported by Unity, Unreal Engine, Maya, and 3ds Max. Converting GLB to FBX brings web-originated 3D content into professional game and animation pipelines.
Last updated: August 2026. Format details reference the glTF specification and the FBX format overview.
Frequently Asked Questions
How do I convert GLB to FBX?
Upload your .glb file using the converter above. The tool converts it to FBX format automatically. Download the FBX file when conversion is complete.
Is this GLB to FBX converter free?
Yes, completely free. No registration, no watermarks, no hidden costs.
What is the difference between GLB and FBX?
GLB is a web-optimized binary 3D format with PBR materials and animations, maintained by the Khronos Group. FBX is Autodesk's proprietary format widely used in game engines and 3D animation. GLB is for web 3D; FBX is for game development pipelines.
Does converting GLB to FBX preserve animations?
GLB supports skeletal animations and morph targets, and FBX also supports these. Animation data should transfer during conversion. If animations are missing, use Blender to verify and re-export.
How do I convert GLB to FBX in Blender?
In Blender, go to File > Import > glTF 2.0 (.glb/.gltf). Then go to File > Export > FBX (.fbx). Configure export settings (materials, animations, scale) and click Export.
Can I import the converted FBX into Unity?
Yes. FBX is the native format for Unity. Drag the FBX file into your Unity Assets folder. Unity imports the mesh, materials, and any embedded animations automatically.
Can I import the converted FBX into Unreal Engine?
Yes. FBX is also the standard format for Unreal Engine. Use Import to bring the FBX into your Content Browser. Unreal imports meshes, materials, and skeletal data.
Why convert GLB to FBX?
GLB is optimized for web delivery. FBX is the standard for game development (Unity, Unreal) and 3D animation (Maya, 3ds Max). If you need to use a GLB model in a game engine or desktop 3D software, converting to FBX is the standard path.
Does GLB to FBX preserve PBR materials?
GLB uses PBR (metallic-roughness). FBX supports materials but uses a different model. Basic PBR properties (base color, metallic, roughness) transfer, but advanced properties may need manual adjustment in Blender or your target engine.
Can I convert GLB to FBX on Mac?
Yes. Our online converter works in any browser on macOS. Alternatively, use Blender or Maya on Mac.
What is the maximum file size?
Up to 50MB per file. Conversion processes GLB binary data and transforms it into FBX format efficiently.
Does FBX support PBR materials?
FBX itself does not have a native PBR material model. However, modern game engines (Unity, Unreal) map FBX material properties to their PBR shaders. For best PBR fidelity, use Blender to set up Principled BSDF materials before exporting FBX.