- REDIRECT wikipedia:World Wide Web Consortium
| Developer | Extension | |
|---|---|---|
| Cascading Style Sheets | World Wide Web Consortium | css |
| Extensible Markup Language | World Wide Web Consortium | xml |
| HyperText Markup Language | World Wide Web Consortium | html htm |
| MathML | World Wide Web Consortium | xml |
| Resource Description Framework | World Wide Web Consortium | rdf |
| Scalable Vector Graphics | World Wide Web Consortium | svg svgz |
| Synchronized Multimedia Integration Language | World Wide Web Consortium | smil |
| XHTML | World Wide Web Consortium | xhtml html htm xht xml |
| XML Schema Definition | World Wide Web Consortium | xsd |