About OpenCPN

OpenCPN is a free software (GPL) project to create a concise chart plotter and navigation software for use as an underway or planning tool.  OpenCPN is developed by a team of active sailors using real world conditions for program testing and refinement.

The most recent stable version, OpenCPN 2.1.0,  was published on June 24, 2010 and can be downloaded from opencpn.org/download.

Features

• BSBv3 raster and S57 ENC chart support.
• CM93 vector chart support.
• IHO S52 compliant display of S57 vector charts.
• Single-chart and Quilted display modes.
• North-up and Course-up display modes.
• Moving-map display mode.
• Route navigation with ship tracking functions.
• Waypoint navigation.
• NMEA 0183 GPS interface at selectable baud rate.
• gpsd library support.
• Autopilot output support.
• AIS input with full target tracking and collision alerting.
• Anchor watch/alarm functions.
• GRIB file input and display for weather forecasting.
• GPX Waypoint and Route input and output file support.
• Tide and Current prediction and display by location.
• Multi-language support.

International sites
Deutsch - OpenCPN.de
Nederlands - OpenCPN.nl (coming soon)
Español
Français