The Khronos Group - Connecting Software to Silicon

The Khronos Group is a not for profit industry consortium creating open standards for the authoring and acceleration of parallel computing, graphics, dynamic media, computer vision and sensor processing on a wide variety of platforms and devices. All Khronos members are able to contribute to the development of Khronos API specifications, are empowered to vote at various stages before public deployment, and are able to accelerate the delivery of their cutting-edge 3D platforms and applications through early access to specification drafts and conformance tests.

Khronos WebGL API Registry

Khronos WebGL API Registry

The WebGL API registry contains specifications of the core API; specifications of Khronos- and vendor-approved WebGL extensions; IDL files corresponding to the specifications; and other related documentation.

WebGL Core API Specification, IDL, and Documentation
WebGL Extensions