Viking is a free/open source program to manage GPS data
An information system for cyclists in Berlin and Brandenburg
Visualize deep ocean biogeochemical sediment samples in 2D and 3D!
A GUI for the freeware Geographical Information System PCRaster
GDAL wheels for python and C/C++ projects (Linux only)
Geostatistics and geosciences modeling software
QNetMap is the library for displaying the map and the objects on it
Raster layer editing toolbar for ArcMap 10.x
OpenMTP/HRI/HRIT C++ access libraries.