WYSIWYG XHTML editor
Similar to a web browser, <oXygen/> renders the XHTML visually. At the top of
the editor the toolbar contains the specific XHTML actions.
Pressing ENTER shows the available elements that can be inserted at the caret
position.

Other screenshots:
WYSIWYG XML Editor
Document Type Toolbar Customization
XML Grid Editor
Oxygen XML Editor in Japanese
Comparing Directories
Comparing XML Files
The Tree Editor
Visual XML Schema Editor
Logical Model View
Visual RelaxNG Schema Editor
XSLT Editor
XML Database Perspective
SVN Client
WYSIWYG DocBook editor
WYSIWYG DITA editor
WYSIWYG TEI editor
A Custom Layout for Views
A Custom Layout for Editors
Print Preview
XSLT debugger perspective