Free SEO Tools
XML Validator
Paste XML to check its structural well-formedness — entirely in your browser.
About this tool
This checks well-formedness only (balanced, correctly nested tags) — it does not perform full XML Schema (XSD) or DTD validation. To reformat valid XML, use the XML Formatter.
Frequently Asked Questions
- Does this perform full schema (XSD) validation?
- No, it checks well-formedness only — balanced, correctly nested tags — not conformance to any specific XML Schema or DTD.
- How is validity checked?
- Using your browser's native XML parser (DOMParser).
- Can I reformat valid XML here too?
- Yes, use the dedicated XML Formatter for pretty-printing or minifying.