Morse Code

Translate text to International Morse Code and back. Click play to hear the sequence at adjustable words-per-minute (5-30 WPM). Useful for amateur radio practice, scout activities, escape-room puzzles, and the rare moment you actually want to send Morse.

Why Morse still exists

Amateur radio operators use it because it punches through noise that voice cannot. A trained ear pulls Morse out of static at signal-to-noise ratios 20 dB worse than required for voice. For DX (long-distance) contacts in poor conditions, Morse is the difference between making the contact and giving up.

Outside that niche, Morse appears in escape rooms, scouting, retro computing, the occasional movie scene. The tool covers all of those.

What gets encoded

A . -      N - .      0 - - - - -
B - . . .  O - - -    1 . - - - -
C - . - .  P . - - .  2 . . - - -
...
SPACE: word gap (7 units silence)

The tool emits the dot-dash text and optionally plays it as audio at your chosen WPM and tone frequency.

Common workflows

Amateur radio practice. Type contacts you might make on a contest, listen at your target WPM. Brain-train your ear without on-air noise.

Escape-room puzzle design. Need a “three letters in Morse”? The tool shows them; you transcribe to a clue card.

Learning Morse. Start at 5 WPM. Increase as you can decode. The audio playback is faster than reading from a book chart.

Scouting badges. First aid, signal-corps badges. Generate the messages students need to copy.

Why local

Morse audio plays via Web Audio API directly in the browser. No upload, no server-side rendering, no latency. The tool works offline once loaded — useful at hamfests where Wi-Fi is spotty.

Last updated: 2025-01-15