Morse Code Audio Generator

Type a message, choose your sending speed, listen to the Morse code, then save your recording as an MP3. Handy for creating audio clues for mystery geocaches and puzzles.

1. Enter your message

0 / 200 characters

Maximum 200 characters. Supports A–Z, 0–9, spaces, and common punctuation. Line breaks become word spaces.

2. Choose your settings

Playback speed
3–50 WPM
650 Hz

Adjust the pitch to make your audio clue easier or harder to recognize.

3. Morse code preview

Speed: 12 WPM Audio length: 0:00 Signals: 0

4. Listen to Morse

Play the generated audio at your selected speed and pitch.

0:000:00
Enter a message to begin.

5. Download MP3

MP3 audio fileReal .mp3 file, mono, 64 kbps. Use it in your puzzle listing or share it with other cachers.

Your message is processed in your browser. The free MP3 encoder is loaded when you first download; internet access is required for that library.

How Morse timing works

Dot · and dash −

A dash lasts three times as long as a dot. Morse speed is measured in words per minute (WPM).

Correct spacing

One dot between signals in a letter, three dots between letters, and seven dots between words.

For geocache owners

Turn coordinates or a clue into an audio puzzle. Download the MP3 and include it with your mystery cache.