Convert text to Morse code or decode Morse back to text. Play the audio to hear it.
Morse code is a character encoding system that represents letters and numbers using sequences of dots (·) and dashes (—). It was developed by Samuel Morse and Alfred Vail in the 1830s and 40s for use with the telegraph — the first long-distance communication system. A dot is a short signal and a dash is three times longer than a dot.
Morse code is still officially used in aviation navigation (VOR beacons broadcast their identifiers in Morse). Amateur radio operators use it because Morse code signals can penetrate interference and noise that would make voice communication impossible. It's also used in emergency situations — the universal distress signal SOS (· · · — — — · · ·) is known worldwide.