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How to use

  1. 1 Paste your XML.
  2. 2 Pick Beautify for readable indented output, or Minify to collapse whitespace.
  3. 3 Copy or download the result.

Why use this tool

  • Uses your browser's native DOMParser — no external dependency.
  • Catches malformed XML and surfaces the error.
  • Pure client-side — your data stays private.
  • Handles namespaces, CDATA, processing instructions.

Frequently asked questions

Does it validate against a DTD or XSD?

No — well-formedness only (matched tags, valid entities, single root element). For schema validation, use a dedicated XSD validator.

Will CDATA sections be preserved?

Yes — CDATA, comments, and processing instructions all round-trip correctly.

Why does my output show "parsererror"?

Your input is not well-formed XML. Check for missing closing tags, unescaped < or & in text content, or mismatched quotes in attributes.

AI Summary

XML Formatter is a free developer utility by Zerethon Tools. Beautify or minify XML using your browser's native parser. No dependencies, fast and accurate. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

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