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VRML Pronounced ver-mal, and short for Virtual Reality Modeling Language, VRML is a specification for displaying 3-dimensional objects on the World Wide Web. You can think of it as the 3-D equivalent of HTML. Files written in VRML have a.wrl file extension (short for world). To view these files, you need a VRML browser or a VRML plug-in to a Web browser.

VRML produces a hyperspace (or a world), a 3-dimensional space that appears on your display screen. And you can figuratively move within this space. That is, as you press keys to turn left, right, up or down, or go forwards or backwards, the images on your screen will change to give the impression that you are moving through a real space.

The new VRML 2.0 specification was finalized in August, 1996. It is known officially as ISO/IEC 14772.