HTML

The core markup format of the web, used to structure documents and applications with elements for text, links, media, forms, metadata, and interactive content.

General information

Format name: Hypertext Markup Language
Extensions: .html.htm
MIME type: text/html
Category: document
Data type: Text
Developer: WHATWG

Common uses

Web pages

Web applications

Documentation

HTML email content

Offline web documents

Related formats

XHTML .xhtml XML .xml Markdown .md

Technical resources

Resource	Publisher	Link
HTML Living Standard	WHATWG	Open resource ↗
Media Types Registry	IANA	Open resource ↗

Record information

Verified: October 4, 2026
Last updated: October 4, 2026

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