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.
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.
SAGA GIS - SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS)...
OpenStreetMap - OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
what3words - Geocoding system for the simple communication of locations with a resolution of 3 m