GLTF to GLB ConverterFree & instant
Select your .gltf file together with its .bin and textures and download a single GLB. Everything runs locally in your browser, so nothing is uploaded.
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Convert GLTF to GLB in seconds
Free, instant, and entirely in-browser.
What is the difference between glTF and GLB?
Both store the same glTF 2.0 scene. A .gltf file is JSON that usually points to separate .bin geometry and image files, which is handy for editing but easy to break when files get separated. A .glb packs the JSON, geometry and textures into one binary file, which is what three.js, Babylon.js, <model-viewer>, Shopify, Unity and most AR viewers expect.
Why did my conversion fail?
Most failures come from missing resources: the .gltf references a .bin or texture that wasn't selected. The converter lists any missing files by name, so select them together with the .gltf and try again. To check a model for spec errors, run it through the glTF validator.
Next: make your GLB up to 90% smaller
Converting doesn't shrink the model. Compress the GLB with Draco geometry compression and WebP/AVIF textures so it loads fast on the web and in AR.
Compress your GLB
