How do I format XML online?
On the DevTools XML Formatter page, paste XML and click Format for hierarchical indented output.
XML Formatter
DevTools XML Formatter beautifies XML documents locally in your browser with indentation and line breaks—parse errors show a clear reason, no file upload.
XML Formatter
Beautify XML documents with indentation and line breaks; parse errors show a clear reason.
About this tool
Useful for API responses, config files, and RSS/Atom snippets. Invalid XML returns parse errors to help you fix issues quickly.
How to use
- Paste your XML document.
- Select indent width.
- Click Format and copy the result.
FAQ
Is the XML declaration preserved?
Yes. If input includes <?xml ...?>, it remains at the top of the formatted document.
What happens with invalid XML?
The browser parser error is shown—fix tags or escaping and try again.
Is formatting done on a server?
No. Processing runs in your browser.
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