Google Maps, Waze, MAPS.ME, OsmAnd, OpenStreetMap, HERE WeGo, Organic Maps, Apple Maps, ViaMichelin, Leaflet, Qwant Maps, 2GIS, Open Topo Data, Magic Earth, Acastus Photon, Anyplace, Geocodio, CMaps Analytics, Old Maps Online, Rasters.io, Cartogram, OpenLevelUp, TallyGo, HUDWAY Go, tubenav, inkata, HoursOf are some alternatives to Universal Maps Downloader.