Korean Morse Code
Korean Morse code has a code for each Hangul letter. Type in Korean to see and hear it: every syllable is split into its letters.
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Pause for a letter gap, pause longer for a word gap. On a computer the space bar works too. Timing follows the speed in Settings.
Decode Morse from sound or a picture
Play a Morse tone near the microphone, or open a recording. The decoder finds the pitch and the speed by itself and works best on a clean tone between 300 and 1500 Hz. An image works when the dots and dashes are solid shapes on a plain background, like a screenshot or a printed card. Nothing is uploaded: everything is processed on your device.
Set overall speed lower than letter speed for Farnsworth timing: letters stay quick, the gaps get longer. This is how most people learn.
Morse code chart
Tap any character to hear it.
Letters
Numbers
Procedural signals (prosigns)
Sent as one signal with no gap between the letters. Type them in angle brackets, like <SK>.
How it works
Each basic consonant and vowel has a code: ㄱ is ·−··, ㅏ is ·, ㅗ is ·−. A syllable such as 한 is sent as its letters ㅎ, ㅏ and ㄴ. Double consonants and compound vowels are sent as their parts, so ㄲ is sent as ㄱ ㄱ and ㅘ as ㅗ ㅏ. Because of that, decoding cannot always tell ㄲ from two separate ㄱ; the translator rebuilds syllables the way a Korean keyboard would.
History
A Morse code for Hangul was first published in 1888 in the Chŏnbo changjŏng, prepared by Kim Hagu. It has been used in much the same form since, except that codes for ㅐ and ㅔ were added later.
Sources
English Wikipedia, which cites the current Korean regulations for radio stations, and Korean Wikipedia; all 26 letters agree.
Tables checked against their published sources on 25 September 2026.
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