GLTF→GLB

A .gltf is often several files (JSON, .bin, textures). GLB packs everything into one file that is easy to upload, email and serve.

Drop your .gltf 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.

glTF (GL Transmission Format): glTF is the Khronos Group’s open standard for delivering 3D models, often called “the JPEG of 3D”. A .gltf file is JSON that describes meshes and physically based (PBR) materials, with binary data and textures alongside or embedded. Used by: three.js, Babylon.js, Blender, Sketchfab, and developers who want a readable, editable model file.

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.

The scene is re-packed into binary glTF. Geometry, materials and hierarchy are unchanged. If the .gltf references external .bin or texture files, those must be available for them to be included.

Uploading a model to a store or CMS that accepts one file; serving a single asset from a CDN; sending a model to a client.