XML Validator
Paste an XML document to check well-formedness, tag structure, and encoding issues.
Paste your XML document above
We will check for well-formedness and structure issues
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XML Validation: Guide to Well-Formed and Structurally Correct Documents
Learn how XML validation works, the difference between well-formed and valid XML, and how to fix common errors.
What Is XML Validation?
XML validation verifies that an XML document is both well-formed and structurally correct. Well-formed means the document follows basic XML syntax rules — properly nested tags, quoted attributes, and a single root element. Validation goes further by checking against a schema or DTD.
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