The best open source alternative to Google Earth is OpenStreetMap. If that doesn't suit you, our users have ranked more than 50 alternatives to Google Earth and 18 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Google Earth are Marble, GNOME Maps, Street GL and NASA World Wind.
Community-maintained global map and geographic-data service where anyone can browse, search and edit roads, trails, transit, addresses, businesses, land use and natural features. Its openly licensed data can be downloaded, shared, adapted and used with attribution.
United Kingdom
Marble is a Virtual Globe and World Atlas that you can use to learn more about Earth: You can pan and zoom around and you can look up places and roads. A mouse click on a place label will provide the respective Wikipedia article.
Germany
EU
quickly find the place you’re looking for by searching for a city or street, or locate a place to meet a friend.
United States
World Wind lets you zoom from satellite altitude into any place on Earth. Leveraging Landsat satellite imagery and Shuttle Radar Topography Mission data, World Wind lets you experience Earth terrain in visually rich 3D, just as if you were really there.
United States
Open-source astronomy software offering accurate night sky simulation with 100 million stars, Ekos astrophotography suite, stellar observation planner, "What's up Tonight" tool, FOV editor, and a variety of celestial catalogs for comprehensive astronomical exploration.
GermanyEU
Goal of this project is to bring offline maps and navigation to Sailfish OS with native look and feel. OSM Scout for Sailfish OS is based on OSM Scout library.
CzechiaEU
Provides GPS navigation for on-road and off-road journeys on Android and Linux, utilizing a forked libosmscout backend, with GPX reading and writing, compass, trip tracker, road routing, POI database, offline mapping, data import/export, and suitable for outdoor activities.
FranceEU
GMap.NET is great and Powerful, Free, cross platform, open source .NET control. Enable use routing, geocoding, directions and maps from Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac, Yandex, Mapy.cz, Maps.lt, iKarte.
Mobile app for Mergin Maps 📲. Open QGIS projects and manage vector data on your phone, even offline 📶 (Android/iOS/Windows app).
CzechiaEU
Offline desktop map viewer featuring vector OpenStreetMap data, navigation, GPX track import/export, elevation and contour display, customizable map layers, waypoint tools, and efficient handling of large files for outdoor, hiking, or off-road planning and navigation.
GermanyEU
