eXist-db is a feature rich Open Source native XML database
Minimalistic address book in web browser. No server or plugin needed.
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
Digital edition visualization software
XML Application Framework based on JAVA
A free universal Braille Transcriber
Powerful export module with xslt and python language support for Archi
Toolkit for rapid XML and web application development