You already paid for charts with your tax dollars. Why pay twice? Sea Drive gives you unlimited access (both online and offline) to all NOAA charts.
Check tides and currents without an internet connection. Visualize tides and currents for years into the future (or past) at more than 3000 locations around the US.
Turn on the GPS to instantly see your location on the chart. Sea Drive supports north up, course up, and heading up view modes. Your speed over ground is always available.
We know offline support is important, that's why it free. Download unlimited offline charts so you have access anywhere anytime.
Enable satellite overlays for better navigational awareness and to help visualize your next destination whether it's a beach or a marina.
Drop a pin on a secret fishing spot or any point of interest. Share or export your markers.
Build routes and customize waypoint names. Navigate and view ETA, SOG, and bearing to the next waypoint.
Record, pause, and save your vessels location. Share and replay your routes or export a GPX file.
Use the caliper tool to measure the distance between points.
Export routes, tracks, and markers as a GPX file for easy sharing with friends or compatible devices.
Orient your chart to course up mode and view a heading line overlaid on the chart.
Position the cursor and wipe up on the info panel to view details about anything on the chart.
We love feedback (especially the bad stuff). Contact us with requests and ideas. We might even build it!
Free US Charts
Sea Drive provides chart coverage for the US, the Great Lakes, and US Territories. We'll expand more globally in the future and we promise to keep chart data at as low of a cost as possible.