Cross platform (lin/win/mac) geographical information system (GIS)
Toolkit for working with and mapping geospatial data
... the open-source glide computer
Open OSINT stack for monitoring, analysis, and risk detection
Tool to work on map data, to check the data and generate your own maps
Offline vector map display ported from OsmAnd
Analysis and display of Census, business, government attribute data
Geodesy based library (geodetic and geocentric functions)
Geostatistics and geosciences modeling software
GPS mapping and management software
Application for managing land searches for missing persons.
Web Mapping Platform
Multiplatform Ham Radio APRS and Mapping Program
A wildfire decision support system and visualization tool from Emxsys.