XML Validator
Validate XML markup and get detailed error messages for malformed XML.
About XML Validator
Validate XML syntax online and get detailed error messages. Free online XML validator.
All processing runs entirely in your browser using JavaScript. No data is ever transmitted to any server, making this tool safe for sensitive and confidential content.
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Frequently Asked Questions
Is this tool free to use?
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Yes, completely free with no signup required.
Is my data private?
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All processing runs in your browser. No data is ever sent to any server.