Oxygen is an XML Editor, XSLT/XQuery Debugger and Profiler with full Unicode support. It supports visual XML editing driven by CSS stylesheets. Introduces XML Author specially tuned for content authors providing a well designed interface for XML editing by keeping only the relevant authoring features. It offers a powerful code insight that can follow a DTD, Relax NG or an XML Schema or even can learn the structure from a partial edited document.