Open Source OpenCPN Alternatives
The best open source alternative to OpenCPN is zyGrib. If that doesn't suit you, our users have ranked three alternatives to OpenCPN and three of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to OpenCPN are Open Nautical Charts and OpenSeaMap.
OpenCPN is mainly a Map Service but alternatives to it may also be Weather Forecast Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of OpenCPN.- Open Nautical Charts offers free seacharts for everybody.
- OpenSeaMap's goal is to add nautical and tourism information a sailor could be interested in to OSM (OpenStreetMap) and to present it in a pleasing way.