What is XML Validator?
XML Validator validates, formats, and beautifies XML documents. Whether you are working with RSS feeds, web services, or configuration files, this tool helps ensure your XML is syntactically correct.
Why Use XML Validator?
- Instant Validation - Check XML syntax in real-time
- Beautiful Formatting - Automatically indent your XML
- Detailed Errors - Get specific error messages
- Free & Secure - All processing happens in your browser
XML Syntax Rules
- Every XML document must have exactly one root element
- Tags must be properly nested (no overlapping)
- All tags must be closed, including self-closing tags
- All attribute values must be in quotes
- XML is case-sensitive
Frequently Asked Questions
Is my XML data sent to a server?
No. All validation and formatting happens entirely in your browser using JavaScript. Your XML data never leaves your device.
What's the difference between well-formed and valid XML?
Well-formed XML follows XML syntax rules. Valid XML additionally conforms to a specific schema (DTD or XSD).