Morse Code Encoder / Decoder
Convert text to Morse code and decode Morse back to text. Plays audio using the Web Audio API. Click any symbol in the reference chart to insert it.
How Morse Code Works
Morse code encodes characters as sequences of short signals (dots, dit) and long signals (dashes, dah). A dash is three times the duration of a dot. Between dots and dashes within a character: one dot gap. Between characters: three dot gaps. Between words: seven dot gaps. The universal distress signal SOS (... --- ...) was chosen because it is easy to remember and transmit, not because it stands for any specific phrase.
Audio Playback
Click Play Audio to hear your message as actual Morse code tones using the Web Audio API. The frequency is set to 600 Hz, which is the standard practice frequency used by amateur radio operators. Real Morse code speed is measured in WPM (words per minute) based on the word PARIS as a standard.