FBX is the game-industry format, but the web and AR speak glTF. Converting FBX to GLB takes Mixamo characters and Unity or Unreal assets onto web pages. This converter runs entirely in your browser: the file is processed on your own device and never uploaded.
Why convert FBX to GLB?
FBX is the game-industry format, but the web and AR speak glTF. Converting FBX to GLB takes Mixamo characters and Unity or Unreal assets onto web pages.
How it works
Drop your .fbx file above and download the .glb. The conversion engine (Assimp, compiled to WebAssembly) runs inside the page, so it works the same on Windows, macOS, Linux and ChromeOS without installing anything.
FBX vs GLB
FBX (Autodesk Filmbox): FBX is Autodesk’s proprietary interchange format for meshes, materials, skeletons and animation. It is the de-facto format for moving animated assets between content tools and game engines. Used by: Maya, 3ds Max, MotionBuilder, Unity, Unreal Engine, and asset stores such as Mixamo.
GLB (binary glTF): GLB is glTF packed into one binary file: scene description, geometry and textures together. That single self-contained file is why the web and AR use it. Used by: <model-viewer>, three.js, Android Scene Viewer, Shopify 3D product models, Blender and game engines.
Quality notes
Meshes, materials and the node hierarchy are converted by Assimp. Skeletons and animations are carried over where Assimp can map them to glTF, but complex rigs, blend shapes and proprietary material settings should be checked in a viewer before publishing.
Common use cases
Putting a Mixamo character on a website; moving game assets into three.js or Babylon.js; making AR previews from FBX product models.
Frequently asked questions
Are animations kept?＋
Where Assimp can map them to glTF, yes. Always preview the GLB — complex rigs and blend shapes can need fixes in Blender.
Why do textures look different?＋
glTF uses physically based materials. FBX shading models are approximated during conversion.
Is my asset uploaded?＋
No. Conversion runs locally in the browser.
Is FBX to GLB lossless?＋
Geometry is. Materials and animation depend on how the FBX was authored.