X3D is the open-standard format for 3D graphics scenes on the Web.
eXist-db is a feature rich Open Source native XML database
XML Application Framework based on JAVA
xslet project provides some XSL libraries and applets.
A project to define templates for XML markup, and tools to edit them.
Create XML and JSON data services from any data source
Cookbook Style Document for DocBook Customizations
LGPL GML parser
Data migration/conversion library based on STX and XSLT transformation
Toolkit for rapid XML and web application development
Write-Once, Deploy-Everywhere software framework
Printed document formatting like invoices, payment instruments, etc.
Program to transform any XML document to a RDF one.
A prototype extensible XML editor based on Mozilla technology