Extensible 3D (X3D) Graphics and Humanoid Animation (H-Anim) include a coordinated set of steadily evolving ISO standards. The Web3D Consortium Standards Strategy carefully improves and evolves our standards while maintaining long-term archival stability. These standards are developed, tested, maintained and updated by Web3D Consortium members. Following public comment and approval by the Web3D Consortium, they are submitted to International Standards Organization (ISO) for a series of annual reviews. The X3D Working Group proceeds at the best speed supported by member and public contributions.

All standards sponsored by the Web3D Consortium are listed here. The standards are listed by ascending ISO/IEC number, then by descending  version number. Older versions of current ISO published standards are provided for historical reasons, and should not be used for the development of new implementations or X3D scenes.