XML Formatter & Validator
Format messy XML with clean indentation or minify it to reduce size. Invalid XML is caught instantly with a clear error message. All processing runs in your browser — nothing sent to any server.
Frequently Asked Questions
What does XML formatting do?▼
XML formatting (beautifying) adds consistent indentation and line breaks to make XML human-readable. Minifying does the opposite — it removes all whitespace to reduce file size for transmission or storage.
How does the XML validator detect errors?▼
The formatter uses the browser's built-in DOMParser with 'application/xml' MIME type. If the XML is malformed, the parser returns a parsererror element with a description of the problem.
What is the difference between XML and HTML?▼
XML is a strict markup language where all tags must be closed and properly nested. HTML is more forgiving. XML is used for configuration files, data exchange (REST/SOAP APIs), SVG, and more.
Does self-closing tag formatting work?▼
Yes. Elements with no child content are serialized as self-closing tags (e.g., <br/>) to produce compact, valid XML output.
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