Morse Code: Practice & Key

Mochi Lab

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About this app

A full-featured Morse app for practice, conversion, and transmission.

◆ Keyer Pads (Key Mode)
・Short press = dit (.), long press = dah (-) for authentic keying
・Auto-detects timing to decode characters and words in real-time
・Adjustable speed from 5 to 30 WPM

◆ Text ⇄ Morse Conversion
・Instantly converts typed text to Morse code
・Decodes Morse back to text
・One-tap copy for results

◆ Sound, Vibration & Flashlight
・Plays 700Hz sine wave tones (CW sound)
・Transmit via vibration or LED flash
・Toggle sound, vibration, and light independently

◆ Japanese Morse Support
・Includes international code (A-Z, numbers, symbols) plus Japanese Kana
・Supports dakuten, handakuten, and long vowels

◆ Code Reference
・Built-in chart for letters, numbers, symbols, and Kana
・Tap any symbol to hear its rhythm for memorization

Perfect for amateur radio CW practice, SOS learning, puzzles, and cryptography. Fully offline with 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.