GlTF to GLB converter
Drop a glTF file and get a GLB back in seconds. glTF is human-readable JSON, used mostly for debugging and hand-editing scene data. GLB is one self-contained file, the usual choice for the web, Godot, three.js, Android AR and general sharing. The conversion runs entirely in your browser, so your file never leaves your device.
Choose a file to see its details here. Nothing is uploaded: everything runs in your browser.
How to use the gltf to glb converter
- 1Choose your glTF fileDrag it onto the panel or click to browse. It's read locally and never uploaded.
- 2Check the previewOrbit the model and check the triangle count, size and materials before converting.
- 3Download the GLBExport a GLB with one click. Downloads are included with every plan.
What carries over
- Textures and materials from the glTF are re-packed into the GLB.
glTF vs GLB
| glTF | GLB | |
|---|---|---|
| Full name | GL Transmission Format (JSON) | binary glTF |
| Appearance | PBR materials; textures embedded as data URIs in our export | PBR materials and embedded textures |
| Animation | Yes | Yes |
| Units | metres by convention | metres by convention |
| Best for | debugging and hand-editing scene data | the web, Godot, three.js, Android AR and general sharing |
Questions
- Is my glTF file uploaded?
- No. The glTF is parsed and the GLB is written by JavaScript in your browser tab. The file never reaches our servers.
- Will the GLB look the same as the glTF?
- The geometry is identical. GLB keeps materials and textures too. See the notes above for this exact pair.
- Is there a file size limit?
- Files up to 150 MB open, but very large models depend on your device's memory. Desktop browsers handle big files best.