Plugins for OpenCPN
Interactive visualization of plate tectonics.
GPSBabel converts and transfers data like waypoints, tracks & routes.
Source code for ArcGIS Viewer for Flex - a great application framework
GWC is a tile server and caching proxy written in Java
Open OSINT stack for monitoring, analysis, and risk detection
Multiplatform Ham Radio APRS and Mapping Program
Open source system for GPS tracking devices
Apl. móvil de Información georeferenciada + visor 3D escritorio