Google My Maps
google.comFree custom maps with pins, lines and layers on Google Maps
Open data, field collection apps and free GIS used in humanitarian response and development work.
Open building footprints detected from satellite imagery
Administrative boundaries for every country
Open humanitarian datasets including boundaries and population
Gridded population data for the world
Open administrative boundaries with permissive licences
Free mobile data collection for research and citizen science
Field app for QGIS projects
Open Data Kit: offline mobile data collection
QGIS-based field data collection with team sync
Form-based field surveys from Esri
Free survey and data collection for humanitarian work