Marine Navigation Software CapCode-software suite for sailors v.1.0 CapCode is a navigation software for sailors for cruising or regatta. Reads NMEA 183 data (instruments, GPS, AIS). MaxSea is one of the best marine navigation software. As the name suggests, this works when on water. If you’re into boating or if you’re going on the cruise, this software application would come in handy. Most commercial fishermen and workboats use this software and it is definitely one of the top rated ones. Marine Navigation Light Simulator. This Marine Navigation Light Sim App simulates the red, green and white lights you need on your vessel when sailing or boating at night. The one and only marine navigation software – Why? CAPN listens and delivers what real working Captains want. No fancy fluff, just a real-life practical marine navigation tool for workboat, merchant and government professionals including the U.S. Navy and Coast Guard. The popular choice for sail boaters & power boaters.
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Free Marine Navigation Software
OpenCPN Latest Release
OpenCPN is free, open source software for marine navigation. It is available for Mac OSX, Microsoft Windows, GNU/Linux, BSDs and Solaris.
Plugins
Plugins for OpenCPN are third party feature additions that expand the functionality of OpenCPN into those niche areas.
Over 40 plugins available.
User Manual
Our User Manual is available to download as an epub document. (It is also bundled with OpenCPN.)
[User Manual EPUB] [User Manual Zipped html]
Related: [OpenCPN Version 5.0.0-ChangeLog EPUB]
Beta Testing
User Icons
Install your own icons to use with marks and 'own ship'.
Layers Library
Layers library consists of user-contributed overlays showing various navigational items of interest.
Vector Palette
The default chart style can be changed to look different. JesperWe's Swedish-look palette or SHOM.
Tidal Files
Updated tides for North America.

Weather
Pilot charts, weather plugins, grib files
Plugins for OpenCPN 4.0 & Earlier
Free Marine Navigation Charts
Important note for OpenCPN 4.0 (and earlier) users. Upgrade to the latest version of OpenCPN. Really. It is much better and more stable than the version you are running now. We will not post any more updates to the older version plugins available here, ever.
Archives
Free Marine Navigation Software For Pc
Compressed or zipped OpenCPN documentation from the archives.
Maxsea Marine Navigation software, free download
version 4.0.0version 3.2.2version 3.0.2version 3.0.0version 2.5.0version 2.3.1version 2.1.0version 1.3.6
All former OpenCPN released versions are available from Source Forge.