There's a bucket load of free GIS software packages available for you to map the world. Manage, visualize and edit GIS data with open source GIS software.

Explore QGIS's exceptional cartographic design features to craft outstanding maps for desktop, mobile, cloud, and print media. Experience QGIS's extensive set of design options to bring …

Esri releases and supports open source GIS software and tools. Esri has shared more than 350 open source projects & provides many solutions for customizing and extending ArcGIS.

OSGeo, the OpenSource for GeoSpatial Fosters global adoption of open geospatial technology by being an inclusive software foundation.

Nov 24, 2025 · 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 …

Sep 27, 2023 · Unlock powerful spatial analysis and visualization capabilities with the help of the top 14 open-source & free GIS software for smarter mapping and analysis.

Whether you are a beginner or an advanced GIS user, tools like QGIS, GRASS GIS, gvSIG, SAGA GIS, and Whitebox GAT offer powerful geospatial capabilities without licensing costs.

Nov 18, 2025 · QGIS is the most popular open source, user interface-based software, while Python and R offer a wide array of powerful open source scripting-based functionality.

Oct 6, 2024 · As we move into 2024, these top five open-source GIS tools stand out for their robust features, ease of use, and versatility in handling complex spatial data. From urban …

Discover 7 powerful open source mapping tools that deliver professional-grade GIS capabilities without costly software. From QGIS to OpenStreetMap, transform your geospatial projects today.