Interactive visualization of plate tectonics.
Plugins for OpenCPN
Multiplatform Ham Radio APRS and Mapping Program
... the open-source glide computer
Google Earth Enterprise - Open Source
A tool for fast serializing & deserializing of JSON
Geocode addresses to coordinates
Braille & ASCII world map renderer for your console
Ultra Fast Geospatial Database & Geofencing Server
Tools for reading, validating & writing transit schedule info in GTFS
Open source system for GPS tracking devices
GDAL wheels for python and C/C++ projects (Linux only)
GeoData Web Editing [core SIG Web]
Apl. móvil de Información georeferenciada + visor 3D escritorio
Open OSINT stack for monitoring, analysis, and risk detection
Advanced mission simulation and analysis tool