Free Online XML and XSD Validator

Validate your XML, XSD, or XML against XSD quickly and easily. Ensure your XML documents are well-formed and conform to their schema with our free online tool.

How to Use Our XML/XSD Validator

  1. Input FilesPaste your XML/XSD content or upload files (max 2MB).
  2. Choose Validation TypeValidate XML only, XSD only, or XML against XSD.
  3. Run ValidationClick 'Validate' to check your files.
  4. Review ResultsCheck validation results and fix any issues.

Key Features of Our XML/XSD Validator

Multi-Mode Validation

Validate XML, XSD, or XML against XSD schema.

Detailed Error Reporting

Get specific line numbers and error descriptions.

Schema Support

Full support for XML Schema 1.0 and 1.1.

Secure Processing

Local validation with complete privacy.

Popular Use Cases

Data Integration

  • Validate API request/response formats
  • Check EDI document compliance
  • Verify data exchange formats

Development & Testing

  • Debug XML schema issues
  • Test configuration files
  • Validate SOAP messages

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Helpful Resources & Guides