How to Send Morse Code: Sound, Light, and Tapping

Three Ways to Send Morse Code

Encode your text first, then transmit the dots and dashes through any channel: an audible tone, a flashing light, or a tapped pulse. The timing is identical — short for a dot, three times longer for a dash, with set gaps between letters and words.

Sound carries fastest and is easiest to read by ear; light reaches across a room or a dark distance; tapping works silently, hand to hand or on a hard surface.

Send Morse with Sound

A clean tone makes Morse easy to recognise because the rhythm becomes an audible shape. The app plays your message as audio at a speed you choose, so you can practice listening or signal out loud.

Speed is measured in words per minute. Start slow to keep the dot-dash spacing clear, then raise the pace as your ear adapts.

Send Morse with a Flashlight

Light signaling uses the same timing as sound: a short flash for a dot, a long flash for a dash. It is the classic way to reach someone across a distance or in the dark.

The app can flash the message on the phone’s flashlight, and combine sound and light together at the same time — that combined mode is free to try a few times before a one-time unlock.

Decode Morse by Sound

Receiving is the other half of signaling. The app’s audio decoder listens through the microphone and turns knocks, claps, taps, or a Morse tone back into text — processed locally on the device, with nothing recorded or uploaded.

That means you can capture a signal someone taps near the phone, or check your own keying by ear, fully offline.

Try the Morse translator

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