The Maxwell School
Syracuse University
Syracuse University
QGIS is a full-featured open-source GIS application.
To download it, go to the link below and click the giant green Download QGIS 3.xx button.
If you have a Mac, be sure to note the extra instructions regarding security: the first time you use QGIS you'll need to launch it by control-clicking on its icon in your Applications folder.
If you have a Windows computer, you'll also see a link labeled "OSGeo4W Network Installer". Do not use that: it's not needed and is significantly more complicated to install than QGIS itself.