How to use it
- Type text in Text or Morse code to see its Morse code. Each letter is a group of signals, and words are separated by a slash.
- Or type Morse code, with dots, dashes and a space between letters, to read it as text.
- Leave Direction on Detect, or choose the direction yourself.
- Press Play to hear the Morse code. Set the Speed and the Tone first if you need to.
The Morse code signals
International Morse code shows each letter, figure and punctuation mark as a pattern of short signals (dots) and long signals (dashes). The codes used here are those of ITU-R M.1677-1, the recommendation of the International Telecommunication Union.
- A dot takes one unit and a dash takes three units.
- The gap between the parts of one letter is one unit, the gap between letters is three units and the gap between words is seven units.
- SOS is three letters: ... --- ...
Speed and sound
The speed is measured in words per minute with the PARIS standard: the word PARIS takes 50 units, so one unit lasts 1200 divided by the speed in words per minute. At 20 words per minute a dot lasts 60 milliseconds.
The sound is a sine tone made by your browser. Nothing is recorded.
Letters with accents
The recommendation gives codes for the letters A to Z, the figures 0 to 9, the punctuation marks it lists and the accented e (é). The Turkish letters ç, ğ, ı, ö, ş and ü have no code there, so they are sent as their plain letters. Other accented letters are sent as plain letters too. Characters with no code, such as emoji, are left out and listed under the result.
Worked example: SOS
Typing SOS gives ... --- ...: three letters, with a gap of three units between them. At 20 words per minute the sound lasts 27 units, about 1.6 seconds.
| Part | Units |
|---|---|
| S (...) | 5 |
| Gap between letters | 3 |
| O (---) | 11 |
| Gap between letters | 3 |
| S (...) | 5 |
| Total | 27 |
Frequently asked questions
Is Morse code the same in every country?
The letters, figures and punctuation marks of International Morse code are the same worldwide, as set out in ITU-R M.1677-1. Older national variants differ, but this page uses the international table.
Why are the Turkish letters sent as plain letters?
The international recommendation gives no code for ç, ğ, ı, ö, ş or ü. Sending them as c, g, i, o, s and u keeps the message readable, and the page says so next to the result.
What is the difference between a dot, a dash and the gaps?
A dot is a sound of one unit and a dash is a sound of three units. The gaps are silence: three units between letters and seven between words, so the listener can tell the letters and the words apart.
Does the sound work on a phone?
Yes, in a current browser. You have to tap Play, because the browser only allows sound after a tap. If you hear nothing, check that the device is not on silent.
Does my text leave my device?
No. The translation and the sound are made in your browser. Nothing you type is sent to our server or saved by the page.
Sources
Figures and text last checked on Tuesday, November 10, 2026.