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XML Validator

Validate XML syntax and structure with detailed error reporting

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XML Validation Rules

This validator checks for well-formedness and common XML issues.

What is Checked:

  • • Syntax Errors: Malformed tags, unclosed elements, invalid characters
  • • XML Declaration: Presence and correctness of <?xml ?> declaration
  • • Encoding: Proper encoding specification
  • • Empty Elements: Elements without content or attributes (warning)
  • • Structure: Proper nesting and hierarchy
  • • Statistics: Element count, attribute count, maximum depth

About XML Validation

A well-formed XML document must follow specific syntax rules: proper opening/closing tags, unique attribute names, and valid character encoding.

Note: This validator checks well-formedness, not schema validity (XSD/DTD). For schema validation, you need additional tools.