OpenSeaMap

OpenSeaMap

Type of site	Wiki to create a free world map.
Available in	English, German, French, Italian, Spanish, Russian, Arabic
Owner	Community
Created by	members of the OpenSeaMap and OpenStreetMap community
URL	map.openseamap.org & openseamap.org
Commercial	No
Registration	only required for contributors
Launched	2009
Content license	CC BY-SA (map), ODbL (data)

OpenSeaMap is a software project collecting freely usable nautical information and geospatial data to create a worldwide nautical chart. This chart is available on the OpenSeaMap website, and can also be downloaded for use as an electronic chart for offline applications.^[1]

The project is part of OpenStreetMap. OpenSeaMap is part of the OpenStreetMap database, and complements the spatial data with nautical information. Such data may be used in accordance with the Open Database License. This ensures integration into printed materials, websites and applications is possible, without being limited by restrictive licenses, or having to pay fees.