Khronos glTF Registry

glTF registry contains base specifications; specifications of Khronos- and vendor-approved glTF extensions; JSON-Schema files corresponding to the specifications; and other related documentation.

glTF Specification and JSON Schemas

glTF 1.0

glTF 2.0

glTF Extensions

glTF Extension Registry

glTF 2.0 overview

Diagram by Marco Hutter ( (repo) ).