Sample 21 KB GLB File — Free Download for Testing

sample-animated-rotation.glb · 20,648 bytes · 1,024 triangles · 512 vertices · normals · 1 material · 1 animation · metres, Y up

Exactly 20,648 bytesmodel/gltf-binaryDirect linkNo sign-upFree for any use

This is a 21 KB sample GLB file — exactly 20,648 bytes, generated by us rather than scraped, so the size is deliberate and the contents are free of anyone else's copyright. 1,024 triangles • node animation: rotation + translation, 4 s loop • 21 KB (1,024 triangles · 512 vertices · normals · 1 material · 1 animation · metres, Y up). Use it to test an upload limit near 21 KB, to time a transfer, or as a fixture whose hash never changes.

Sizes here are decimal: 21 KB means 20,648 bytes, not 0.02 MiB. If your limit is expressed in binary units, check the exact byte count above before assuming this file is under it.

Rendered preview of the sample GLB model
Static render of a sample on this page, flat-shaded by our generator. Open the downloads in any GLB viewer to inspect them in 3D.

File details

File namesample-animated-rotation.glb
Exact size20,648 bytes (21 KB / 20 KiB)
FormatGLB — binary glTF 2.0 (.glb)
MIME typemodel/gltf-binary
Properties1,024 triangles · 512 vertices · normals · 1 material · 1 animation · metres, Y up
SHA-256b746adabb50d4e9836ce59b72396c44b5298e685e46dc9ba94b3567de1431406
Direct URLhttps://pnb-freetoolsforweb.s3.us-east-2.amazonaws.com/samples/3d/glb/sample-animated-rotation.glb

Download from the command line

curl -O https://pnb-freetoolsforweb.s3.us-east-2.amazonaws.com/samples/3d/glb/sample-animated-rotation.glb
shasum -a 256 sample-animated-rotation.glb

Other GLB sizes

Frequently asked questions

How big is this GLB file exactly?

Exactly 20,648 bytes (21 KB using decimal units, where 1 MB = 1,000,000 bytes). Binary-unit tools will show a slightly different number: 0.02 MiB. The SHA-256 on this page lets you confirm you received the same file byte for byte.

What can I test with a 21 KB GLB file?

Upload size limits that sit near 21 KB, transfer timing, storage quotas, and any pipeline that behaves differently above or below a size threshold. Pick the file just under and just over your limit to find out whether the limit is inclusive.

Is this file free to use commercially?

Yes. It is generated from scratch by our own open script — no third-party copyright, no scripts or macros inside — and free for any purpose including commercial products and redistribution, with no attribution required.

Found a problem, or something that could be better? We read every message and we fix things quickly.