Browse free open source GIS software and projects below. Use the toggles on the left to filter open source GIS software by OS, license, language, programming language, and project status.
Toolkit for working with and mapping geospatial data
Viking is a free/open source program to manage GPS data
Interactive, thoroughly customizable maps in the browser
Interactive visualization of plate tectonics.
Multiplatform Ham Radio APRS and Mapping Program
Geostatistics and geosciences modeling software
A wildfire decision support system and visualization tool from Emxsys.
Analysis and display of Census, business, government attribute data
Geodesy based library (geodetic and geocentric functions)
ERSI Shapefile Viewer