I need the administrative boundary data levels 0-4 (or as small as possible) for all countries of the world. The best source I can see so far - the most complete - is from GADM. However their license says not for commercial use, which I will intend to use it for.
I need the data in shapefile or geojson format in which I will convert to svg.
How did GADM get the data for all the administrative boundaries? I would be willing to spend time recreating all the data from scratch if I knew how or where to get data from.
Thanks.
Quoting from GADM Wikipedia entry:
GADM project created the spatial data for many countries from spatial databases provided by national governments, NGO, and/or from maps and lists of names available on the Internet (e.g. from Wikipedia).
Alternatives:
https://www.igismap.com/download-free-shapefile-maps/amp/
https://www.naturalearthdata.com/downloads/50m-cultural-vectors/50m-admin-0-countries-2/
http://thematicmapping.org/downloads/world_borders.php
https://geonode.wfp.org/wfpdocs/?limit=10&offset=0
- CAR - Administrative boundaries (Shapefile 4 levels) < -- This
https://data.world/iom/853bc4cc-55bb-4d00-8c63-a28fc1f130f5