A web based Geographic Metadata Catalog for data description and discovery. It implements international standards (e.g. ISO19115/19139, ISO19115-3, Z39.50, CSW 2.0, OGC). It originates from the United Nations and is used by many governments as geoportal software Source code available on github https://github.com/geonetwork/
GpsPrune is a java application to view and manage coordinate data, eg from GPS units. With it you can load a variety of text and Xml formats, view the data (in 2d and 3d), edit and convert the data, correlate photos and audio, create charts and more.
Java and ColdFusion libraries to lookup country code and language from IP address. It uses a local copy of the WHOIS database to perform fast, accurate lookups of country codes. Useful for log analysis, internationalization, geolocation, etc..
RouteConverter is another route conversion tool. It helps me and I hope it could help you.
PKGML is a java gis toolkit to create dynamic, interactive maps.
NanhaiGIS is a java GIS software focus on geographical information in South China sea(Nan Hai in Chinese). It can display map of the South China Sea as well as the area from Singapore to the Strait of Taiwan.