GLB / glTF
glTF is the open standard file format for 3D models, and GLB is its binary single-file variant, often called the JPEG of 3D.
What is glTF / GLB?
glTF (GL Transmission Format) is an open standard file format for 3D scenes and models, developed by the Khronos Group. GLB is the binary container version that packs everything (geometry, textures, animations, PBR materials) into a single file. It's often called the "JPEG of 3D" for its role as a universal, efficient delivery format.
When to Use It
GLB is the go-to format for real-time and web use: games, 3D viewers, AR, and any engine that supports PBR materials (Unity, Unreal, Godot, Three.js). Use .gltf (JSON + separate files) during development; ship .glb (single binary) to production. For animation-heavy handoff into Autodesk tools reach for FBX, and for 3D printing use STL. See our export formats guide for a full comparison.
