gxmlviewer is a stand-alone XML viewer written using GNOME-libs, and GTK. It also comes with a Netscape 4.7x plugin that attaches itself to the text/XML MIME type, and will display the xmlviewer inside the Netscape window. The displayed XML looks very similar to the Internet Explorer model, where you see the source view with collapsable nodes. It has a bonobo control for the XML viewer, which can be embedded into any bonobo compliant application. Note: An extras project has been created that currently contains a command line XML formatter tool.