Cross platform (lin/win/mac) geographical information system (GIS)
Interactive, thoroughly customizable maps in the browser
GeoServer repository
Large-scale WebGL-powered geospatial data visualization analysis
An open source geocoder for openstreetmap data
Geographic library
Toolkit for working with and mapping geospatial data
Handling and basic analysis of hyperspectral data in R
GPS track editor for editing tracks and planning (multiple) day tours
GWC is a tile server and caching proxy written in Java
Open OSINT stack for monitoring, analysis, and risk detection
A project on topography and weather comparison
A software package for quantitative analysis in Panbiogeography
Open Source Desktop GIS with Surveying and Cartography Functionality
Geographic feature extraction and data mining
An information system for cyclists in Berlin and Brandenburg
Spatial Statistics Libraries & Tools for GeoTools, GeoServer, uDig