XML Formatter & Validator
Pretty-print and validate XML in the browser with selectable indent.
Paste any XML and get a clean, indented version. The tool uses your browser's built-in XML parser to validate the structure and reports parse errors. No server round-trip — everything runs locally.
Common use cases
- Beautify SOAP requests, RSS feeds and Atom feeds for inspection
- Validate XML config files (pom.xml, web.xml, build.xml) before committing
- Inspect raw responses from legacy APIs that still return XML
- Re-indent minified XML payloads pulled from network logs
Frequently asked questions
Is namespace XML supported?▾
Yes. The native DOMParser preserves namespaces and attributes during reformatting.
Will it validate against an XSD or DTD?▾
No — only well-formedness is checked. For schema validation use a dedicated tool like xmllint.
What happens with CDATA sections and comments?▾
Both are preserved in the formatted output.
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