Convert FBX to GLB - Free Online Converter
Drop a .fbx file below and download it as .glb in seconds. The conversion runs entirely in your browser - no upload, no signup, no watermark. The output is a single self-contained GLB ready for web viewers, engines, and AR.
Updated July 2026
Done in seconds
Your FBX converts to GLB locally in your browser - no upload queue, no waiting.
Private by design
Your file never leaves your device. Nothing is uploaded, nothing is stored.
Free, no strings
No signup, no watermark, no file limit - convert as many files as you need.
How to convert fbx to glb
Drop your FBX file
Drag the .fbx file into the converter above or click to browse. No account and no upload - the file stays on your device.
Conversion runs in your browser
The model is parsed and rewritten locally, in seconds for typical files. Geometry is carried over 1:1 - no remeshing, no quality loss.
Download the GLB
The .glb download starts from the same spot. Convert as many files as you like - there is no limit or watermark.
FBX and GLB, explained
What is FBX?
FBX is Autodesk's proprietary scene format and the long-standing standard for moving rigged, animated characters between DCC tools and game engines. Skeletons, skinning, blend shapes, and animation clips all travel inside one file.
Because the format is closed, no official browser tooling exists - this fleet writes FBX through assimp's open-source FBX writer running as WebAssembly, right in your browser. Static geometry with UVs is the reliable path; rigs and animation clips need a DCC-tool export.
- Developed by
- Autodesk (proprietary) (2006 (Autodesk era))
- Structure
- Proprietary binary scene container
- Used by
- Unity, Unreal Engine, Maya, 3ds Max, MotionBuilder
What is GLB?
GLB is the binary form of glTF, often called "the JPEG of 3D". One file packs the full scene: meshes, PBR materials, embedded textures, animations, and a real unit scale (meters). It is the standard for 3D on the web and the default output of most AI 3D generators.
Because everything is embedded in a single binary file, GLB transfers cleanly between tools with nothing lost in transit. glTF/GLB is an open Khronos standard, loads fast, and is supported by every modern engine, DCC tool, and web viewer.
- Developed by
- Khronos Group (2015)
- Structure
- Single binary file: JSON scene + buffers + textures
- Used by
- Web viewers, Three.js, Unity, Unreal, AR apps, e-commerce platforms
What survives the fbx to glb conversion
Format conversion is honest work: some data has nowhere to go in the target format. Here is exactly what carries over.
Mesh geometry
All meshes are carried over exactly, with the FBX scene's transforms baked in.
UV coordinates & normals
Texture coordinates and normals survive, so materials applied downstream map correctly.
Embedded textures & materials
Textures embedded inside the FBX are carried into the GLB as PBR materials. Textures referenced as external files are not - they are not part of the single file you drop.
Rig & skinning
The mesh exports in its bound rest pose; skeleton data itself is not converted. For animated GLB, export directly from your DCC tool.
Animation clips
Clips are not carried over in this conversion - it targets static display assets.
When should you convert FBX to GLB?
Convert to GLB when a game asset should go on the web: product viewers, portfolio embeds, AR previews, and sharing - one compact file with textures baked in, loadable by every modern viewer.
Keep the FBX for the DCC-to-engine pipeline - Unity and Unreal ingest FBX natively, and it remains the format that carries rigs and animation between tools.
Still weighing the formats themselves? See the full GLB vs FBX comparison - structure, materials, file size, and which wins for each use case.
And if what you actually need is a new model rather than a new file format: 3D AI Studio's main tool can generate 3D models from photos with AI - with exports to every format on this page.
FBX to GLB - frequently asked questions
Made with 3D AI Studio
Need new game assets, not just a format swap?
3D AI Studio creates game-ready 3D assets from images or text with AI - textured, exportable to GLB and FBX, and usable in Unity or Unreal. 100 free credits per month.