Are my files uploaded to a server?

No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.

Is anything lost converting GLB to glTF?

No. They are the same format with different packaging, so geometry, materials, textures and animation all survive exactly.

Why is the glTF so much larger?

Because it is written out as readable text with the binary data embedded, and because Draco compression — if the GLB used it — is undone on the way. The model is the same; only its written form has changed.

Convert GLB to glTF

Runs on your device · Your file never leaves your device.

GLB and glTF are the same format wearing different clothes: GLB is one sealed binary file, glTF is readable JSON. Converting one to the other opens the model up so you can look at its structure, check what materials it declares, or edit something by hand.

Nothing is lost in the move. Geometry, materials, textures and animation all carry over — this is a repackaging, not a re-encoding. A GLB that was Draco-compressed is decompressed on the way, which is why the glTF is usually a good deal larger; the model is identical, it is simply written out in full.

The conversion runs on your own machine, which for a 3D file is the whole point: a model is usually a client’s product, a scanned property or something not yet announced. Nothing is sent to a server, so there is nothing to delete afterwards and nothing to take anyone’s word for.

How to convert GLB to glTF

Drop the GLB file.
Check that glTF is selected.
Press Convert.
Download the .gltf file.

Supported formats and limits

Input: GLB, including Draco-compressed
Output: glTF (.gltf, readable JSON)
Keeps animation: Yes
Keeps textures: Yes, embedded in the file
Where it runs: In your browser; the model is never uploaded

Not for: Producing a .gltf with a separate .bin and loose texture files — the output is a single self-contained .gltf.

Frequently asked questions

Are my files uploaded to a server?: No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Is anything lost converting GLB to glTF?: No. They are the same format with different packaging, so geometry, materials, textures and animation all survive exactly.
Why is the glTF so much larger?: Because it is written out as readable text with the binary data embedded, and because Draco compression — if the GLB used it — is undone on the way. The model is the same; only its written form has changed.

More you can do with a GLB file

Related tools

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