Cross platform (lin/win/mac) geographical information system (GIS)
An open source geocoder for openstreetmap data
Large-scale WebGL-powered geospatial data visualization analysis
GeoServer repository
Geographic library
Toolkit for working with and mapping geospatial data
Open OSINT stack for monitoring, analysis, and risk detection
Viking is a free/open source program to manage GPS data
GWC is a tile server and caching proxy written in Java
GPS track editor for editing tracks and planning (multiple) day tours
An information system for cyclists in Berlin and Brandenburg
Spatial Statistics Libraries & Tools for GeoTools, GeoServer, uDig
Geographic feature extraction and data mining
Open Source Desktop GIS with Surveying and Cartography Functionality
utilities for cadastre system
A software package for quantitative analysis in Panbiogeography