QGIS - QGIS is a desktop geographic information system, or GIS.
ArcGIS - 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.
GRASS 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.
Topocal - TopoCal - Cálculos Topográficos: la topografía al alcance de todos. ¡Ya puedes descargar TopoCal 2020!
SAGA GIS - SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS)...
KeplerJs - The open source full-stack geosocial network platform