What is XML?
XML (eXtensible Markup Language) is a markup language for encoding structured data in a text format using nested, custom tags. It supports attributes, namespaces and schema validation (XSD/DTD), and is used for documents, configuration, web feeds (RSS) and enterprise data exchange.
XML wraps data in nested, self-describing tags you define yourself, with optional attributes on elements and namespaces to avoid name clashes. A schema (XSD or DTD) can enforce structure and types.
Once dominant for web services (SOAP) and data interchange, XML is now common for documents (DOCX, SVG), feeds (RSS/Atom) and configuration. JSON has largely replaced it for web APIs.
XML tools
XML Formatter
Beautify or minify XML using your browser's native parser. No dependencies, fast and accurate.
Open toolXML to JSON Converter
Convert XML to JSON in your browser. Native DOMParser with configurable attribute prefix, text key, and compact mode.
Open toolJSON to XML Converter
Convert JSON to XML in your browser. Configurable root element, attribute prefix, and text key.
Open toolCSV to XML Converter
Convert CSV (or TSV / pipe-separated) data to XML. Configurable root and record element names. Header row becomes column tags.
Open toolFrequently asked questions
What is the difference between XML and HTML?
HTML has a fixed set of tags for displaying web pages; XML lets you define your own tags to describe data. XML is for storing/transporting data, HTML for presenting it.
Is XML still used?
Yes — for documents, SOAP, RSS/Atom feeds, configuration and enterprise systems needing schema validation, though JSON dominates web APIs.