A GLB file, opened on any computer or phone.

Open a GLB file in your browser with nothing uploaded: turn the model round, play its animations, and see its parts, materials and pictures.

By Suraj Kumar3 November 20264 min read

A GLB model drawn in 3D, with its parts and animations listed

A GLB is a whole 3D scene in one file: shapes, materials, pictures and animations together. It is what most web shops, games and 3D sites hand out. KeepSimp's GLB viewer opens one in your browser, on any device, without sending it anywhere.

Open it, whatever you are using.

Open the GLB viewer and drop the file on it. It opens in Chrome, Edge, Safari and Firefox, on Windows, a Mac, a Chromebook, an iPhone or an Android phone.

GLB files squeezed with Draco or meshopt, and those whose pictures are KTX2, open too; the decoders are served by KeepSimp itself, never fetched from Google or anyone else.

See what it holds.

Details lists its parts, triangles, materials, pictures (with their sizes), animations with their lengths, skeletons, shape keys and the glTF extensions it uses, and names the program that made it when the file says.

Parts lists every piece by name. Hide one, or press it to see where it is on the model.

Animations play with a timeline, at half, normal or double speed; Space plays and pauses.

Its real size.

glTF is always in metres, so the size the viewer gives is the size the maker meant. Press Measure and two points for the distance between them.

Picture saves a PNG of the model as it is shown, on a clear background if you like.

A little less theory. A little more doing.

Try it on your own terms, with a free browser tool.

Try the tool

A GLB file, opened on any computer or phone.

Open it, whatever you are using.

See what it holds.

Its real size.

Further reading

A little less theory. A little more doing.

Keep exploring