Japanese Morse Code
Japanese Morse code, called Wabun code, has its own code for every kana. Type in hiragana or katakana to see and hear it.
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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>.
Wabun code
Wabun code sends kana, not kanji. The current code dates from 1873. Its designers assigned the kana, in iroha order, to the codes of the 1854 German-Austrian telegraph code rather than to International Morse, so the same signal means different things in each: a single dot is ヘ in Wabun and E in International Morse, a single dash is ム and T.
Voiced sounds and small kana
The dakuten (゛) and handakuten (゜) are sent as separate signs after the kana: ガ is sent as カ then ゛. Small kana such as ゃ or っ are sent as the full-size kana. Kanji cannot be sent: write those words in kana.
Switching between codes
When Wabun is mixed with International Morse, operators send the procedural signal DO (−··−−−) to start Wabun and SN (···−·) to return to International code.
Sources
English and Japanese Wikipedia; all 48 kana agree. Japanese Wikipedia also cites the Japanese radio station operating rules, which define both codes.
Tables checked against their published sources on 25 September 2026.
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