XML

A text-based markup format for representing structured documents and data using nested elements and attributes.

General information

Format name: Extensible Markup Language
Extension: .xml
MIME types: application/xmltext/xml
Category: data
Data type: Text
Developer: World Wide Web Consortium
Introduced: 1998

Common uses

Structured data exchange

Configuration files

Document formats

Web feeds

Application data

Related formats

JSON .json CSV .csv TXT .txt SVG .svg

Technical resources

Resource	Publisher	Link
Extensible Markup Language (XML)	World Wide Web Consortium	Open resource ↗
RFC 7303 — XML Media Types	RFC Editor	Open resource ↗

Record information

Verified: October 3, 2026
Last updated: October 3, 2026

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