S-57 Chart Viewer

S-57 ENC Viewer

Drop an ENC file here or click to browse.
Accepts a NOAA .zip exchange set, a base .000 cell, or a cell with its .001/.002 updates.

Choose file(s)
Load sample: Boston Harbor (NOAA US5MA12M)

Browse thousands of free US charts in the NOAA catalog.
Parsed entirely in your browser. No server, no GDAL.