Question 1

What is a GLB file?

Accepted Answer

A GLB file is the binary form of glTF 2.0, a standard format for 3D scenes and models. It packs the glTF JSON description, binary geometry and animation buffers, and embedded textures into a single file, which makes it ideal for the web, AR/VR, and game engines.

Question 2

How do I see what is making my GLB file so large?

Accepted Answer

Open the GLB in GLB Inspector at glbinspect.qwee.ai. It parses the container locally and shows a storage-composition breakdown of exactly how many bytes go to geometry, textures, animation, skinning and padding, so you can see what to optimize.

Question 3

Is GLB Inspector free and private?

Accepted Answer

Yes. GLB Inspector is completely free and runs entirely in your browser. Your model is never uploaded to a server — all parsing, previewing and editing happens locally on your device.

Question 4

Can I reduce the size of a GLB file online?

Accepted Answer

Yes. GLB Inspector lets you select and delete meshes you do not need, prunes unused data, decompresses Draco/Meshopt geometry, and re-exports a smaller GLB — all without uploading the file.

Question 5

Do I need to install anything to inspect a glTF or GLB model?

Accepted Answer

No installation is required. GLB Inspector is a single web page. Just open glbinspect.qwee.ai in a modern browser and drop in a .glb file.

GLB Inspector

Drop a GLB to inspect it

Asset

3D preview

Texture atlas

Meshes

Materials

Drop to inspect this GLB