theriom.com / XSD
WSDL or XSD Documenter
Some time ago I needed to produce some documentation describing existing soap webservices. I looked into other tools that already do this, but none of them produced the output in a format that suited me, also the schema for the webservice has literally hundreds of options that were rarely or never used, or were never or no longer supported. I thought that using the existing tools would make the reader even more confused.