Free Website Utility

XML Validator

Paste XML and check whether it is well-formed. The validator will report parser errors with line and column details when available.

Useful for developers, XML conversion projects, publishing workflows, content cleanup, and debugging broken XML.

Format XML Instead

What it checks

This validator checks whether XML is well-formed, meaning tags are properly opened and closed, attributes are quoted, and the document can be parsed.

What it does not check

This version does not validate against a DTD, XSD, or Relax NG schema. It only checks basic XML well-formedness.

Common XML errors

  • Missing closing tags
  • Unescaped ampersands
  • Improperly quoted attributes
  • Multiple root elements
  • Invalid nesting