Open Source Desktop GIS with Surveying and Cartography Functionality
GWC is a tile server and caching proxy written in Java
Navigational Algorithms - Marine navigation
Toolkit for working with and mapping geospatial data
Build your own GPS unit
GPS track editor for editing tracks and planning (multiple) day tours
Geographic feature extraction and data mining
A software package for quantitative analysis in Panbiogeography
Bootable linux distro for Geospatial Applications
Showing The Amateur radio Repeaters Tool
Open OSINT stack for monitoring, analysis, and risk detection
An information system for cyclists in Berlin and Brandenburg
Spatial Statistics Libraries & Tools for GeoTools, GeoServer, uDig
... the open-source glide computer
utilities for cadastre system
Handling and basic analysis of hyperspectral data in R
The bidirectional mapping library for Python