SAGA GIS Alternatives

QGIS is a desktop geographic information system, or GIS.

GRASS GIS is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization.

open-source

RealityMAX is the most powerful free 3D design collaboration platform, 100% online. Cooperate remotely with your colleagues on 3D projects and easily share your work with clients. Create Web3D and AR experiences in a snap, without a line of code.

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ArcGIS software is a data analysis, cloud-based mapping platform that allows users to customize maps and see real-time data ranging from logistics support to overall mapping analysis.

Garmin® BaseCamp® provides an interface for viewing Garmin map products and managing...

GeoDa is a GIS-based software that provides a user-friendly and graphical interface to methods of exploratory spatial data analysis to conduct visualization, spatial analysis, spatial modeling, and spatial auto-correction.

‘Cos open source can be even bigger

gvSIG Mini Maps allows you to browse and navigate with GPS a full set of free on/offline maps from...

Whitebox GAT is an open-source, cross-platform GIS-based software package that is intended for advanced geospatial analysis and data visualization in research and education.

uDig is a desktop geographic information service (GIS) development platform. It was created by Refractions Research, which has been churning out GIS-related software since 1998. Read more about uDig.

MapWindow is a fully free and open source geographic information system project.

Maptitude is a mapping software that is fitted with GIS features that avail maps and other forms of data regarding the surrounding geographical areas. Read more about Maptitude.

OrbisGIS is a cross-platform open-source Geographic Information System (GIS) created by research and for research.

Google Earth Pro allows you fly anywhere around the earth to view satellite imagery, maps, 3D building, and terrain, from galaxies in outer space to the canyons of the ocean.