Cross platform (lin/win/mac) geographical information system (GIS)
Open Source Routing Machine - C++ backend
Geographic library
GPS log file viewer and analyzer
Navigational Algorithms - Marine navigation
... the open-source glide computer
Geographic feature extraction and data mining
Automated detection of the unknown early map projection
Minimalistic wide-open GPS-locator/tracker
LaMa - A Localization and Mapping library
Adjustment of local surveying networks, binary builds for Windows
A GUI for the freeware Geographical Information System PCRaster
Interactive visualization of plate tectonics.
Spectral Data - binary builds for Windows 10
Interactive, thoroughly customizable maps
Geodesy based library (geodetic and geocentric functions)
Geostatistics and geosciences modeling software
Open Source Marine Chart Plotting Program
A tile-based map viewer with support for GPX files.
Former project page