About the XML Formatter
XML (eXtensible Markup Language) is a text format used to structure data and configuration in feeds (RSS/Atom), web services (SOAP), build files, sitemaps and many legacy systems. Minified or hand-typed XML is hard to read and easy to break.
This online XML formatter pretty-prints and validates your XML instantly: it indents nested elements, preserves comments and CDATA sections, reports unclosed or mismatched tags and can minify the output. Everything runs client-side, so your data stays private.
How to use it
- Paste your raw XML into the input panel.
- The tool validates it and reports missing or mismatched closing tags if the XML is invalid.
- Copy the pretty-printed (or minified) output.
Frequently asked questions
What is XML?
XML (eXtensible Markup Language) is a markup language that stores data in nested elements with opening and closing tags. It is used by RSS/Atom feeds, SOAP APIs, sitemaps and configuration files.
XML vs JSON?
Both are text formats for structured data. XML supports attributes, namespaces, comments and schemas, while JSON is lighter and maps directly to programming data types. Many modern web APIs now prefer JSON.
Can I minify XML?
Yes. Minifying removes whitespace between tags to produce the smallest valid document, useful for network transfer and storage.
Is it safe to paste production data?
Yes. Formatting and validation happen in your browser and nothing is transmitted or stored.