XML Validator (Well-formedness)
Check XML well-formedness and get precise parse errors.
About the XML Validator (Well-formedness)
Check that an XML document is well-formed: every tag closed, attributes quoted, exactly one root element, and no illegal characters. The validator reports fatal errors with line and column positions.
Frequently asked questions
Does it validate against an XSD?
This tool checks well-formedness. Schema (XSD) validation runs client-side in some browsers via the XML to JSON and XSD tools; see the XSD Generator for schema creation.
What counts as well-formed?
One root element, properly nested and closed tags, quoted attribute values, and valid entity references.