XML 1.0

markup · also known as XML (1.0)

The Extensible Markup Language (XML) is a general purpose markup language for creating other, special purpose, markup languages, and is a simplified subset of SGML. The structure and grammar of an XML document can be defined using a markup declaration, such as a Document Type Definition (DTD) or XML schema. A XML document consists of nested elements, each of which may have attributes and content. It typically begins with an XML declaration, defining the XML version and character set used. This may be followed by a Document Type declaration, containing or pointing to a markup declaration for the class of document. An XML document is said to be well-formed if it conforms to the XML specification; it is said to be valid if it additionally complies with a defined markup declaration. The formatting and transformation of XML documents can be controlled using the Extensible Stylesheet Language (XSL).

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• ArchonOpen sourcewrites · University of Illinois/NCSA Open Source License
• Coding Analysis ToolkitOpen sourcereads and writes · GNU General Public License, version 3.0
• GGobiOpen sourcereads and writes · BSD licenses / Common Public License / GNU General Public License
• GigaMeshOpen sourcewrites · GNU General Public License
• GNOME PlannerOpen sourcereads and writes · GNU General Public License, version 2.0 or later
• JabRefOpen sourcereads and writes · MIT License
• LifeLinesOpen sourcewrites · MIT License
• MooseOpen sourcereads and writes · MIT License
• OrbadaOpen sourcewrites · GNU General Public License
• Overpass TurboOpen sourcewrites · MIT License
• phpMyAdminOpen sourcereads and writes · GNU General Public License, version 2.0
• Q127161383Open sourcereads and writes · 2-clause BSD License
• SimThyrOpen sourcereads and writes · BSD licenses
• SimulaBetaOpen sourcereads and writes · BSD licenses
• SimulAdrenOpen sourcereads and writes · BSD licenses
• SPINA CarbOpen sourcereads and writes · BSD licenses
• SPINA ThyrOpen sourcereads and writes · BSD licenses
• SQL Database StudioOpen sourcereads and writes · Common Public License
• TomboyOpen sourcereads and writes · GNU Lesser General Public License, version 2.1
• VYMOpen sourcewrites · GNU General Public License, version 2.0
• XML NotepadOpen sourcereads and writes · MIT License
• AceOpen sourcereads · 3-clause BSD License
• CHICKENOpen sourcereads · 3-clause BSD License
• DokielOpen sourcereads · CeCILL / GNU General Public License, version 3.0 / GNU Lesser General Public License, version 3.0 / Mozilla Public License, version 2.0
• Dom4jOpen sourcereads · BSD licenses
• Eclipse BuckminsterOpen sourcereads · Eclipse Public License
• ExpatOpen sourcereads · Expat license
• IntelliJ IDEAOpen sourcereads · Apache Software License 2.0 / trial
• jEditOpen sourcereads · GNU General Public License, version 2.0 or later
• JemrisOpen sourcereads · GNU General Public License
• JHOVEOpen sourcereads · GNU Lesser General Public License
• libxsltOpen sourcereads · MIT License
• LiquidsoapOpen sourcereads · GNU General Public License, version 2.0
• OpaleOpen sourcereads · CeCILL / GNU General Public License, version 3.0 / GNU Lesser General Public License, version 3.0 / Mozilla Public License, version 2.0
• PhotoRecOpen sourcereads · GNU General Public License
• PMDOpen sourcereads · Apache Software License 2.0 / BSD licenses / GNU Lesser General Public License
• Portfolio PerfomanceOpen sourcereads · Eclipse Public License 1.0
• Q1122464Open sourcereads · GNU General Public License, version 2.0 or later
• QScintillaOpen sourcereads · GNU General Public License, version 3.0
• RefDBOpen sourcereads · GNU General Public License, version 2.0

And 55 more in the JSON record.

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Versions and variants (1)

• TEI/XMLWritable

Sources

• File Formats Wiki
• PRONOM fmt/101
• Wikidata Q2115

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

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