XMLUnit provides assertions that help testing code that produces XML.
Embeddable EXI Processor in C
Simple tool for converting large XML-files to JSON or JSON to XML
Generic Method for Parsing Text into XML
vsd2svg converts Visio VSD files into SVG
A modern style C++ library for working with XML data
Minimalistic address book in web browser. No server or plugin needed.
EXI implementations in Java and C#
XMLJ is a Java XML Editor and validator project.