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Navigating the Download of Navigation Charts

Viewing NOAA Charts


The following FREE Chart Viewers can be used to view NOAA ENCs® and NOAA RNCs. Note: While PC users have choices, only PolarView also has versions available for Mac and Linux in addition to that for PCs.

Product System Required Description
  CARIS Easy ENC   Windows XP or Vista   Free viewer for many different 2D and 3D file formats
  ENC Data Handler for Arc View   Windows Vista, Solaris   Free Data Handler for ArcView from NOAA.
  Requires ArcView or ArcGIS
  Fugawi View ENC   Windows NT, XP or 2000   Free viewer. Viewer has a limit of 3 open S-57 [ENC] charts
  Polar Navy – Free ENC chart viewer   Mac OSX 10.4+, Linux,
  Windows NT, XP, Vista, or 7
  Free Viewer
  Yahnav – Demo ENC   Windows XP or Vista   Evaluate YAHNAV during 30 days. After 30 days you
  must register the program.

Additional systems that use ENCs are listed on the OCS ENC Resources page. These systems all have free trial or demo software that allows you to sample their product before you buy. The trial software usually expires after a given amount of time or number of uses and may or may not allow full use of all features of the software. Demo software provides a guided tour through a product. Free viewers, demos and trial versions give you a chance to see how a particular software you before you purchase.

Note: System requirements vary. PC users have a number of choices. Mac users should check out Polar Navy and MacENC™. Linux users are, at least for now, limited to Polar Navy.