Hypertext Markup Language 5

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The HyperText Markup Language (HTML) is a markup language designed for the rendering of information via a web browser. It was originally defined as a highly simplified subset of SGML, but is now an international standard, and is maintained by the World Wide Web Consortium (W3C). A HTML document consists of nested elements, each of which may have attributes and content. It begins with an HTML Document Type declaration. HTML 5 does not explicitly define the HTML version or any Document Type Definition (DTD) within the DOCTYPE tag.

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• djot.jsOpen sourcewrites · MIT License
• djot.luaOpen sourcewrites · MIT License
• MuPDFOpen sourcewrites · GNU Affero General Public License, version 3.0 or later
• OrbadaOpen sourcewrites · GNU General Public License
• PandocOpen sourcereads and writes · GNU General Public License, version 2.0
• Q220993Open sourcereads and writes · GNU General Public License, version 2.0 / GNU General Public License, version 3.0
• SQL Database StudioOpen sourcewrites · Common Public License
• uMapOpen sourcewrites · WTFPL
• vimwikiOpen sourcewrites · MIT License
• WinhelpCGIOpen sourcewrites · GNU General Public License, version 2.0
• AbiWordOpen sourcereads · GNU General Public License, version 2.0 or later
• GNOME HelpOpen sourcereads · GNU General Public License, version 2.0 or later
• htmlqOpen sourcereads · MIT License
• Q1047199Open sourcereads · ImageMagick License
• Q747793Open sourcereads · GNU General Public License, version 3.0
• SupermiumOpen sourcereads · 3-clause BSD License
• GNU Source-highlightwrites
• DatabaseSpywrites · end-user license agreement
• DataGripwrites
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• GNU UnRTFwrites
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• StarOffice 5.2writes
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• CitizenGuide.KEreads · Creative Commons Attribution 4.0 International
• Cybook Opusreads
• FlexProreads · proprietary license
• Kobo eReaderreads
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• PDF Gurureads

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Sources

• PRONOM fmt/471
• Wikidata Q2053

From PRONOM, Wikidata. Updated 2026-10-20.

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