QGIS is free, open-source desktop GIS software. It runs on Windows, Mac, and Linux.
QGIS is a full-fledged desktop GIS. It reads an writes nearly all geospatial data formats, enables amazingly dynamic cartography, and provides a robust set of processing and analytical tools. Additional functionality is provided by over 300 plugins, which can be installed with just a few clicks. For more details, see the QGIS website.
QGIS is developed by contributors from around the world who are constantly adding new features and improving the program. New versions of QGIS are released every four months. The changelog is a great way of learning about the latest features.
For your own computer
QGIS is free and open source software, which means you can download a copy for your own computer and be up and running within just a few minutes. Installers for Windows, Mac, Linux are available from the official QGIS website:
For each operating system, there are two main versions available:
- Latest release -- includes bug fixes and new features that may evolve a bit in subsequent versions
- Long term release -- includes bug fixes, but not new features; intended for organizations that want a more consistent interface
Windows users have the additional option of installing from the OSGeo4W Network Installer or the QGIS Standalone Installer:
- Standalone installer -- recommended for new users
- OSGeo4W installer -- for more advanced users, it provides a way to upgrade QGIS to newer versions as they become available, and also provides access to other open source geospatial software
Cornell Library offers introductory QGIS workshops each semester. Check the workshop schedule for details.
If you would like to get started on your own, check out these resources:
- Mann Library's "Intro to QGIS" workshop tutorial
- Short recipes from the Cornell Library GIS Cookbook
- Official QGIS training manual
- QGIS Tutorials and Tips by Ujaval Gandhi
- Various QGIS books and e-books are available via the Cornell Library catalog. We especially recommend: