Blender addons to make the bridge between Blender and geographic data
Python data, Leaflet.js maps
GPS log file viewer and analyzer
Toolkit for working with and mapping geospatial data
Geographic feature extraction and data mining
Open Source Desktop GIS with Surveying and Cartography Functionality
Open source cross-platform Java Visual Traceroute
Open-source JavaScript library for mobile-friendly interactive maps
Tool to work on map data, to check the data and generate your own maps
Offline vector map display ported from OsmAnd
OTB is an open-source C++ library for remote sensing images processing
Tiny tool capable of stitching hundreds images into one single image