A Progressive Web App (PWA) that leverages modern browser technology for viewing custom maps, even when offline.
Features Simple - 100% client-side, distributed via the web, hosted free on GitHub Pages Cross Platform - PWA support across all modern browsers, including iOS Safari and Android Chrome Works Offline - Service workers used to pre-cache all application assets Functionality View your GPS position on a custom map without having to pre-build a custom app or website Leverage commonly used, freely available basemap services (OpenStreetMap, USGS Topo & Imagery, NOAA Navigation Charts) Load custom raster maps (MBTiles) and vector features (GeoJSON, KML, GPX) directly from the device or common cloud storage providers (iCloud, Dropbox, GDrive)

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