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XML Validator
Validate XML documents for well-formedness using the browser's native DOMParser. Instant feedback with detailed error messages.
XML Inputxml
Validation Resultplaintext
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Frequently Asked Questions
What does XML validation check?
This tool checks for well-formedness: properly closed tags, correct nesting, valid attribute syntax, proper encoding declarations, and correct XML structure. Note: DTD/Schema (validity) validation is not supported.
What is the difference between well-formed and valid XML?
Well-formed XML follows basic XML syntax rules (closed tags, proper nesting, etc.). Valid XML additionally conforms to a specific schema (DTD, XSD). This tool checks well-formedness.
All processing happens in your browser. No data is sent to any server.