JGPXtool is a software for visualizing and manipulating GPX tracks. At the moment GPX routes and waypoints are not supported. JGPXtool is written in Java and published under the GPL.
Download JGPXtool from its project page at sf.net.
JGPXtool requires a SAX compliant XML parser, e.g. xerces
.
See also: xerces-j.
Copy the JAR-file to wherever you want.