What is Morse Code?
Morse code uses dots (·) and dashes (–) to represent letters and numbers. Originally developed for telegraph systems, it remains in use for aviation, emergency signaling, and amateur radio worldwide.
How to Use
Type any text in the Input box — it converts to Morse instantly. Or paste dots and dashes to decode back to plain text. Press Play to hear it, enable Light to see it flash, or Vibrate on mobile.
FAQ
What is SOS in Morse code? ▾
SOS is ··· — — — ··· — three dots, three dashes, three dots. Chosen for its symmetrical pattern that is easy to recognize in any emergency.
Is Morse code universal? ▾
Yes. International Morse Code is standardized worldwide and recognized by radio operators, military, and aviation in every country.
How do I learn Morse code fast? ▾
Use the Play button to hear each character, study the alphabet grid above, and practice short words like SOS, HI, and OK. Audio repetition is the fastest method.
What does 143 mean in Morse code? ▾
143 means "I Love You" — based on letter counts (I=1, Love=4, You=3). A popular shorthand in messages worldwide.