XML Well-Formedness Checker and Validator Checks an XML document (specified by URL) for well-formedness and optionally DTD-based validity and namespace correctness. Outputs canonical XML. Runs over the web and can be downloaded. http://www.cogsci.ed.ac.uk/~richard/xml-check.html Ed.ac.uk~Site InfoWhoisTrace RouteRBL Check
Examplotron Uses instance documents as a lightweight schema language; sample documents are marked up with the information needed to guide a validator. http://examplotron.org/ Examplotron.org~Site InfoWhoisTrace RouteRBL Check
Systemwire xlinkit integrity management of distributed XML data. Provides a validation rules language and processing engine that allows constraints beyond schema and DTD validation. http://www.systemwire.com/solutions/technology_overview.html Systemwire.com~Site InfoWhoisTrace RouteRBL Check
Trang A open source multi-format schema converter based on RELAX NG. Includes documentation and download. http://www.thaiopensource.com/relaxng/trang.html Thaiopensource.com~Site InfoWhoisTrace RouteRBL Check