HTML 4.0

markup · also known as HTML (4.0)

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, defining the HTML version and Document Type Definition (DTD) to which it conforms. HTML 4.0 represents a major revision of the HTML 3.2 specification.

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• DearkOpen sourcewrites · MIT License
• 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
• DatabaseSpywrites · end-user license agreement
• DataGripwrites
• DynaWebwrites
• GNU UnRTFwrites
• Google Docsreads and writes
• Google Docsreads and writes · proprietary license
• Mathematicareads and writes · proprietary license
• Navicatreads and writes
• Netscape 1.0writes
• Oxygen XML Editorreads and writes · proprietary license
• Q207902writes · proprietary license
• StarOffice 5.2writes
• Stratifywrites
• Amirareads
• CitizenGuide.KEreads · Creative Commons Attribution 4.0 International
• Cybook Opusreads
• FlexProreads · proprietary license
• Kobo eReaderreads
• Onyx Booxreads
• PDF Gurureads

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Versions and variants (7)

• Extensible Hypertext Markup Language 1.0Unknown
• Extensible Hypertext Markup Language 1.1Unknown
• Hypertext Markup Language 2.0Unknown
• Hypertext Markup Language 3.2Unknown
• Hypertext Markup Language 4.01Unknown
• Hypertext Markup Language 5Unknown
• Hypertext Markup LanguageWritable

Sources

• File Formats Wiki
• PRONOM fmt/99
• Wikidata Q8811

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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