Free XML Formatter Online
Indent and prettify XML documents instantly — DOMParser-powered, runs entirely in your browser with no uploads.
How it works
Paste your XML
Paste raw, minified, or messy XML into the input panel.
Format
Click Format XML or press Ctrl+Enter. The formatter parses and re-indents the document.
Copy or download
Copy the formatted XML or download it as a .xml file.
Browser-only
Uses DOMParser — a native browser API. Your XML never leaves your tab.
Common use cases
Reading API responses
Many SOAP and older REST APIs return minified XML. Format it to read the structure and find the values you need.
Config file editing
Maven pom.xml, Android manifests, and Spring configs are XML. Format them before editing to see the structure clearly.
Debugging RSS and Atom feeds
RSS and Atom feeds are XML. Format the raw feed to inspect entries, titles, and publication dates.
SVG prettifying
SVG files are XML. Format exported SVGs to make them readable before editing paths or attributes by hand.
Frequently asked questions
What is XML formatting?
XML formatting (pretty-printing) adds consistent indentation and line breaks to make the document structure human-readable without changing any data.
Does the formatter validate my XML?
Yes — the formatter uses DOMParser which will fail on invalid XML. If formatting fails, the XML has a syntax error (unclosed tag, bad attribute quotes, etc.).
Can I format HTML with this tool?
Use the HTML Formatter for HTML. XML is stricter (tags must be closed, attributes quoted) — HTML documents will likely fail XML parsing.
Does my XML get uploaded?
No. DOMParser is a native browser API. Your document is parsed and formatted entirely locally.