Google Maps, Map Chart, OpenLayers, Mapbox Studio, Mapme, CartoDB, YourMapp, Map Maker, GeoServer, Spotzi, Sharemap, Paintmaps.com, OpenMapTiles, GeoNode, Google Maps Engine, MangoMap, Google Maps API for Business, Mapserver, ZeeMaps, EasyMapMaker, Bing Map API, MapLibre, Geoclip, MapTiler Cloud, TomTom Maps APIs, vMAP Portal, TallyGo, Map Kit Framework, Stadia Maps are some alternatives to Felt.