| HTML | VRML |
|---|---|
| It is a markup language. | It is a modeling language. |
| It creates 2D documents. | It creates 3D worlds. |
| HTML is not case-sensitive. | VRML is case-sensitive. |
| All HTML versions are backward compatible. | No backward compatibility among VRML versions. |
| It uses markup tags. | It does not use markup tags. |
| Files have .htm or .html extensions. | Files have .wrl extension. |
