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...
OpenGeo Suite - Learn the basics of Boundless Server, a GIS server for publishing geospatial data as web services with a highly flexible architecture.
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.
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
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.