Convert GLTF to GLB
Convert GLTF to GLB free in your browser. No upload, no signup, no watermark. Files stay on your device.
drop a .gltf file
or click to browse
related
more 3D model converters
stl to obj
obj to stl
fbx to obj
fbx to gltf
obj to gltf
ply to stl
guide
how to convert gltf to glb
Drop your GLTF file
Drag your GLTF file into the drop zone above, or click the box to pick a file from your computer or phone. The browser reads the file directly — nothing uploads.
Click Convert
The page runs gltf-pipeline on your device to decode the GL Transmission Format and encode it as GL Binary. Most conversions finish in a few seconds; large or codec-heavy files (RAW, video) can take longer.
Download the GLB file
When the conversion finishes, the GLB file is ready to download. Save it anywhere on your device.
FAQ
common questions
What's the difference between .gltf and .glb?
.gltf is a JSON file (human-readable) that references separate .bin files for geometry / animation data and separate image files for textures. .glb is the same data but bundled into one binary file. Same format spec, different packaging: gltf is for inspection / editing, glb is for delivery.
Why convert .gltf to .glb?
Distribution. A .gltf model is actually multiple files (the .gltf itself plus referenced .bin and texture files); to share it you have to ship all those files together correctly. .glb is one file — easier to upload, attach, transfer, or embed. Most game engines and web viewers accept .glb as the convenient single-file form.
Will the file be smaller than the source .gltf + assets?
Usually yes, slightly. .glb has minimal overhead vs the sum of .gltf + .bin + texture files. The binary packaging is denser than the JSON .gltf format because numerical data goes straight to binary rather than being encoded as JSON arrays.
Can I edit the .glb later?
Less easily than .gltf. .glb is binary; you can't open it in a text editor and tweak parameters. For editing, convert back to .gltf form (which gives you the editable JSON), make changes, and re-bundle as .glb. Most 3D tools handle either form transparently, so editing in your usual 3D app is fine either way.
Will the model render identically as .glb?
Yes — identical. .glb is the same data in a different container. Every 3D engine and viewer that supports glTF supports .glb (the two are part of the same spec). No rendering differences, no quality differences.