OpenCPN is a free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux

Apps similar to Open Nautical Charts include OpenCPN, which is free and open source. Other options are OpenSeaMap. Between them they cover Mac, Windows, Linux and the web.
OpenCPN is a free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool.

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.



