QGIS - QGIS is a desktop geographic information system, or GIS.
GeoServer - The reference implementation of the Open Geospatial Consortiums WFS and WMS services, GeoServer is...
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.
OpenLayers - A high-performance, feature-packed library for all your mapping needs.
KeplerJs - The open source full-stack geosocial network platform