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About OpenCPN

A Free and Open Source Chartplotter and Marine GPS Navigation Software.
Windows software
OpenCPN 5.2.0
OpenCPN is a free software (GPLv2) project to create a concise chartplotter and navigation software for use as an underway or planning ...
FreewareScience cad - Simulation
Mac software
OpenCPN for Mac 5.2.0
OpenCPN for Mac is a free software (GPLv2) project to create a concise chartplotter and navigation software for use as an underway or ...
FreewareGraphic - Cad