XSD Schema Checker

Validate XML against an XSD schema. Paste XSD and XML; get line and column errors when the document does not conform.

XSD Schema

XML Document

Click "Validate" to check your code

You might also need

XML Validator
SOAP Response Validator
Config Structure Checker

About this tool

Checks that your XML instance conforms to a W3C XML Schema (XSD). Paste the XSD in the first editor and the XML in the second. Uses libxml2 for validation. Use the API for automation.

For well-formed XML only (no schema): XML Validator.