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XML Formatter & Validator

Format, beautify, and validate XML documents. Instantly see errors in malformed XML with proper indentation.

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Paste XML, inspect the formatted result, and copy the output without leaving fullscreen mode.

Quick examples

Usage notes

  • Invalid XML shows a clear error message from the DOM parser.
  • Nested elements are indented for readability.
  • Self-closing tags are preserved.

Related pages

JSON FormatterJSON to XMLAll Developer Tools

How to Use This Tool

  1. 1Paste your XML.
  2. 2See formatted and validated result.
  3. 3Copy the formatted XML.

Frequently Asked Questions

Does this validate against a schema?
It validates XML well-formedness (structure). Schema validation (XSD) is not currently supported.
Does this support namespaces?
Yes. The DOMParser handles XML namespaces correctly.