Cross platform (lin/win/mac) geographical information system (GIS)
Blender addons to make the bridge between Blender and geographic data
GeoServer repository
An open source geocoder for openstreetmap data
Large-scale WebGL-powered geospatial data visualization analysis
Open OSINT stack for monitoring, analysis, and risk detection
Toolkit for working with and mapping geospatial data
Geographic library
Spatial Statistics Libraries & Tools for GeoTools, GeoServer, uDig
Viking is a free/open source program to manage GPS data
Builds Garmin maps from OpenStreetMap
GWC is a tile server and caching proxy written in Java
utilities for cadastre system
An information system for cyclists in Berlin and Brandenburg
A cartography program with parameter adjustments and gravity fonctions
GPS track editor for editing tracks and planning (multiple) day tours
GPX viewer, analyser and editor with official maps, terrain and graphs
The Drone PACS platform for aerial inspection. Free on-premises.