XML Validator
? Frequently Asked Questions
What does XML validation check?
The validator checks XML syntax (well-formedness): proper tag nesting, closing tags, attribute quotes, special character escaping, and XML declaration. It identifies exactly where errors occur with line numbers.
What's the difference between well-formed and valid XML?
Well-formed XML follows basic syntax rules (tags closed, proper nesting). Valid XML also conforms to a specific schema (DTD or XSD) defining allowed elements and structure. This tool checks well-formedness.
Can it validate against XML schemas (XSD)?
Advanced XML validators support XSD (XML Schema Definition) validation, checking if your XML conforms to specific business rules and data structures. Basic validators only check syntax well-formedness.
Does it format XML for readability?
Yes! Beyond validation, the tool formats XML with proper indentation, making nested structures easy to read. It can also minify XML by removing whitespace for compact storage or transmission.
What are common XML validation errors?
Common errors include: unclosed tags (<tag> without </tag>), improper nesting, unescaped special characters (<, >, &), missing quotes around attributes, and invalid characters in tag names.
Is my data safe and secure?
Yes, absolutely! This tool runs entirely in your browser. All data processing happens locally on your device - nothing is uploaded to our servers. Your files and data never leave your computer, ensuring complete privacy and security.