Cross platform (lin/win/mac) geographical information system (GIS)
Open Source Routing Machine - C++ backend
LaMa - A Localization and Mapping library
Geographic library
GPS log file viewer and analyzer
GPS navigation software for Windows Mobile & WinCE devices.
Navigational Algorithms - Marine navigation
Minimalistic wide-open GPS-locator/tracker
French Geographic Information System
Adjustment of local surveying networks, binary builds for Windows
GDAL wheels for python and C/C++ projects (Linux only)
A GUI for the freeware Geographical Information System PCRaster
Plugins for OpenCPN
Interactive, thoroughly customizable maps
Interactive visualization of plate tectonics.
Spectral Data - binary builds for Windows 10
Geodesy based library (geodetic and geocentric functions)
Automated detection of the unknown early map projection
Geostatistics and geosciences modeling software
Library for OpenStreetMap offline rendering and routing
Subway maps of the World !