Tools for Sailors and yacht crews
18 toolsA kit for the watch and the passage: a COLREG lights and shapes trainer, a light characteristic decoder, tide predictions, compass error from the sun, a maneuvering board with CPA and TCPA, rest-hour records, an anchor watch and port-to-port routing.
Sea distance between ports
A route over water between any two ports: nautical miles, passage time, fuel. Computed in your browser, with canal options and no limits.
Tide Times
High and low water times for any coastal place, a tide curve two weeks ahead and under-keel clearance. Computed in your browser, works offline.
Small-craft skipper practice test
The official EMERCOM question list — 1,221 questions with answers by vessel type and navigation area, plus a ticket in the order No. 90 format.
Compass
Browser compass with true north corrected for declination, bearing hold, a sighting mode and an honest accuracy figure.
Sun & Moon
Find sunrise, sunset, golden hour, day length and the moon phase for any location, with live sun and moon directions on a map. Free.
Weather
Hourly and 9-day weather from two independent forecast models at once — with the disagreement between them shown, not hidden.
Wind Map
Watch live animated wind across the globe from the GFS model — wind speed and direction anywhere, with a reading for your own location. Free.
Morse Code Generator
Convert text to Morse code with audio playback. Adjust speed and tone, download as MP3 or WAV.
Morse Code Decoder
Decode Morse code from audio — record from microphone or upload a file. Real-time analysis to text.
Measure on map
Trace a plot on the map and get its area on the WGS84 ellipsoid — in hectares or acres — not the area of the picture on screen.
Distance Between Cities
Measure the straight-line distance between two cities, with bearing, midpoint, flight time and a map.
GPS Speedometer
See your real speed from GPS: max, average, distance and track export. Check what your dashboard reads against true speed. No install.
Share Location
Find, view, and share your GPS location with an interactive map and compass.
Live Location Sharing
Share your live location with people on a map, in real time — right in the browser, no app.
Walkie-Talkie
Push-to-talk voice chat in your browser. Create a channel, share the code, and talk in groups.
Satellite Tracker
Track satellites live on a map, see Starlink, and find out when the ISS will pass over your location — propagated in your browser. Free.
Online Clock
Six clock types with educational guides and timezone support.
Elevation
Find the elevation at any point on a map, build a profile along a route and get the slope in percent and degrees. Coordinates next to the height.
