Oxygen is an XML and XSLT editor and debugger written in Java. It supports XML, XSL, TXT, XSD and DTD documents. It offers end tag auto-completion and a powerful code insight that guide the user to write valid XML content. The code can be driven by a DTD, an XML schema or by the structure of a partial edited document. It has FOP and Unicode support and the interface is available in English,French, German,Italian, Japanese and Romanian.