Morse Code: Keyer & Translator

Mochi Lab

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About this app

Learn, translate and transmit Morse code — all in one app.

◆ Straight Keyer Pad
・Tap for dot (·), hold for dash (−), just like a real telegraph key
・Letter and word gaps are detected automatically from your timing
・Live decoding shows the text as you key
・Adjustable speed from 5 to 30 WPM

◆ Text ⇄ Morse Translator
・Type text and see the Morse code instantly
・Paste Morse code (dots, dashes, spaces, /) to decode it back to text
・One-tap copy for both directions

◆ Sound, Vibration & Flashlight Playback
・Play any Morse code as a clean 700 Hz CW sine tone
・Transmit with vibration or blink the camera LED flashlight
・Toggle each output independently

◆ Japanese Wabun Morse
・Full International Morse (A–Z, digits, punctuation)
・Complete Japanese Wabun (Kana) Morse table, including dakuten and long vowel marks

◆ Built-in Reference Chart
・Letters, numbers, symbols and Kana code charts
・Tap any entry to hear its rhythm — perfect for memorizing

Great for amateur radio (ham) CW practice, scouting, emergency SOS knowledge, escape rooms and secret messages. Works fully offline — no internet connection required.

What’s new

Initial release: Morse keyer pad with live decoding, text-to-Morse translator, sound / vibration / flashlight playback, International + Japanese Wabun code charts.