Convert GLB to glTF
Convert GLB files to glTF in your browser. Free, no upload, no sign-up.
Convert GLB files to glTF directly in your browser. The converter parses the GLB mesh, rebuilds it in memory and writes it out as glTF, triangle for triangle. glTF can hold everything GLB carries, so nothing is dropped on the way. The two describe the same kind of mesh, so what changes is the container: GLB is a single binary file, glTF is a text file you can open in an editor. Nothing is uploaded, there is no file size limit beyond your computer's memory, and the result downloads instantly. glTF gives you a readable JSON scene that is easy to inspect, diff or post-process in a build pipeline.
How to convert GLB to glTF
- 1Drop your GLB file
Drag a .glb file onto the box above or click to choose one.
- 2Check the preview
The model renders in 3D so you can confirm it loaded correctly. Dimensions, volume and triangle count are shown next to it; open edges are flagged if the mesh is not watertight.
- 3Download the glTF
Adjust the export options if needed and click download. Buffers are embedded in the JSON as base64, so the output is a single file.
What are GLB files?
GLB is the binary container for glTF 2.0, the "JPEG of 3D" maintained by the Khronos Group. A single .glb file bundles geometry, PBR materials, textures and animations, and is the standard format for 3D on the web and in AR viewers.
Commonly used by: web viewers (three.js, model-viewer), AR on iOS and Android, Sketchfab, game engines
What are glTF files?
glTF is the JSON form of the same Khronos standard as GLB. The .gltf file describes the scene as readable JSON; binary buffers and textures may be embedded as base64 or kept as separate files. It is convenient when you want to inspect or edit the scene description by hand.
Commonly used by: web developers, Babylon.js / three.js, Blender, Unity and Unreal importers
glTF gives you a readable JSON scene that is easy to inspect, diff or post-process in a build pipeline.
GLB vs glTF
| GLB | glTF | |
|---|---|---|
| Full name | Binary glTF | GL Transmission Format |
| Encoding | Binary | Text |
| Geometry type | Triangle mesh | Triangle mesh |
| Colors | Yes | Yes |
| Textures | Yes | Yes |
| Materials | Yes | Yes |
| Stores units | Yes | Yes |
| Multiple objects | Yes | Yes |
| Typical use | web viewers (three.js, model-viewer), AR on iOS and Android, Sketchfab | web developers, Babylon.js / three.js, Blender |