In short: A Morse code translator converts letters, numbers and punctuation into dots and dashes using the International Morse Code standard (ITU-R M.1677), and decodes Morse back into text.
About Morse Code Translator
Morse code encodes each character as a sequence of short and long signals — dots and dashes. Although no longer required for ship or aviation communication, it is still used by amateur radio operators, in aviation navigation beacons, as an accessibility input method and in puzzles and escape rooms.
This translator follows International Morse Code as defined in ITU-R M.1677-1: letters are separated by a space and words by a slash (/). Audio is generated in your browser with the Web Audio API using standard timing — a dash is three dots long, letters are three dots apart and words seven.
How to use Morse Code Translator
- Type text, or paste Morse using
.and-with spaces between letters and/between words. - The translation appears instantly; mode is detected automatically.
- Press Play to hear it and adjust the speed in words per minute.
Examples
SOS → ... --- ...
.... . .-.. .-.. --- / .-- --- .-. .-.. -.. → HELLO WORLD
Frequently asked questions
How are unknown characters handled?
Characters without a Morse equivalent are shown as # in Morse output, and unrecognized Morse sequences are shown as ? in text output.
Is Morse code case-sensitive?
No. Morse has no lowercase, so decoded text is shown in capitals.
What does WPM mean?
Words per minute, measured with the standard word “PARIS” (50 dot units). At 20 WPM one dot lasts 60 ms.
Is anything uploaded?
No. Translation and audio happen in your browser. You can check this yourself: open your browser’s developer tools, switch to the Network tab and use the tool — no request carries your input.
Updated November 2026 · Free, no signup · How we build and test tools