GLB
GLB is the acronym for Graphics Library Transmission Format Binary.

Graphics Library Transmission Format Binary
A binary version of the glTF (GL Transmission Format) file format. GLB is designed to efficiently transmit and load 3D models, particularly in web and application development. This format combines a glTF asset’s JSON description, external resources, textures, and binary data into a compact file. This consolidation simplifies loading 3D models in various applications and platforms, making GLB popular for 3D content distribution.