oXygen is a complete cross platform XML editor providing the tools for XML authoring, XML conversion, XML Schema, DTD, Relax NG and Schematron development, XPath, XSLT, XQuery debugging, SOAP and WSDL testing. The integration with the XML document repositories is made through the WebDAV, Subversion and S/FTP protocols. It has also support to browse, manage and query native XML and relational databases. The XML editor is also available as an Eclipse IDE plugin, bringing unique XML development features to this widely used Java IDE.