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XML Validator
Validate XML syntax and find parsing errors instantly.
Raw XML Input
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Ready to Validate
Paste your XML document on the left and click "Validate XML" to check for syntax errors and structural integrity.
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What is the XML Validator?
The XML Validator checks your XML document for structural and syntax compliance using the browser's native W3C DOMParser, reporting precise error descriptions for malformed markup.
Who is the XML Validator for?
Used by backend developers, SOAP API engineers, and XML data pipeline engineers verifying document well-formedness.
How to Use the XML Validator
- Paste your XML code.
- Click Validate XML.
- Read the validation result — Valid or precise error message.
Worked Example
Submitting XML with an unclosed tag produces 'Error: Element type is missing' — pinpointing the malformed element instantly.
Frequently Asked Questions
Does this validate XML Schema (XSD)?
No. This validates well-formedness (correct syntax). Full XSD schema validation requires server-side processing.
How does the validator work?
It uses the native browser DOMParser to strictly evaluate your XML string against W3C standards.