WMO/ICAO XML Web Validator


We're sorry, but the ICAO/WMO IWXXM Web Validator has been discontinued.

To validate your XML against the WMO and ICAO data models hosted at schemas.wmo.int, please download the XML Schema, Schematron files, and validation scripts from the authoritative XML validator:

The Command-line Refuter of Unshapely XML (CRUX) can also be used for validation as a Java library or can be used as a cross-platform command-line utility. It is available at https://github.com/NCAR/crux.

Thank you