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Biyee Online XML Validator

We are glad to share this tool with the XML community. It was initially developed for our internal use because we could not find an online XML validator that can handle multiple external DTD or schema files.

The application server is temporarily down but will be running soon. We apologize for this.

Biyee XML Validator


  • Both DTD validation and XML validation.
  • Allowing multiple external DTD files that can be uploaded
  • Allowing multiple schemas that can be uploaded.
  • Detailed error and warning messages with both line and position numbers.
  • Private workspace to store files for later use (registration is required).
  • Supporting W3C standards: XML 1.0, XML Namespaces, XSD Schemas.
  • No need to install anything.
  • Supporting all major browsers.