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XML Formatter & Validator

New

Format and validate XML online — pretty print with syntax highlighting

Input XML
⚠ DOMParser is not defined
Browser-based, files never uploaded Instant results Works on any device

How to use XML Formatter & Validator

  1. 1Paste XML in the editor
  2. 2Invalid XML shows error immediately
  3. 3Click Format for pretty-printed output
  4. 4Convert to JSON if needed

About this tool

Format, validate, and minify XML online. Pretty-prints XML with proper indentation. Highlights errors with line numbers. Convert XML to JSON.

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Frequently asked questions

What XML errors does it catch?

Unclosed tags, malformed attributes, missing declarations, and invalid character encoding.

Can it convert XML to JSON?

Yes — click the XML to JSON button to convert structure.