XML Formatter
Format, beautify and validate XML with this free online XML formatter. Pretty-print with spaces or tabs, minify, and see the exact line of any error.
Processed locally in your browserHow?
This tool runs in this browser tab. The files, text and values you enter are not uploaded to clkr.work servers — closing the tab clears them. Anonymous usage events (such as which button was pressed) are counted, never your content. Privacy policy
What next?
Found it useful? Share XML Formatter
Free, no sign-up, works in the browser — send it to a friend or add it to your site.
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Part of the toolkit
How to use XML Formatter
- 1Paste your XML into the input box
- 2Pick the indentation, or tick Minify to compress it to one line
- 3Check that it's well-formed (errors show the line), then copy or download the result
Frequently asked questions
What does 'well-formed XML' mean?▾
Every tag is closed and properly nested, there is exactly one root element, attribute values are quoted and special characters like & and < are escaped. The validator uses your browser's strict XML parser to check this.
Is XML validated against a schema (XSD/DTD)?▾
No — it checks well-formedness, not schema rules. A document can be well-formed but still miss elements your schema requires.
Are comments and CDATA kept?▾
Yes. Comments, CDATA sections, processing instructions and the XML declaration are preserved when formatting; minify removes comments and whitespace between tags.
Is my XML uploaded?▾
No. Parsing and formatting happen entirely in your browser.
Embed XML Formatter on your website▾
Paste this snippet into your page. The embedded tool runs in your visitor's browser and shows a small “Powered by clkr.work” link.