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What Is Morse Code? History, Alphabet & Translator
Dots and dashes that changed the world. Morse code was the internet of the 19th century. Here's how it works and how to use it today.
A Brief History
Samuel Morse and Alfred Vail developed Morse code in the 1830s–1840s alongside the electric telegraph. It allowed messages to be transmitted across thousands of miles of wire for the first time in history.
The system assigns dots (·) and dashes (—) to each letter based on frequency — common letters like E (·) and T (—) have the shortest codes.
Essential Morse Code Reference
| Letter | Morse | Letter | Morse | Letter | Morse |
|---|---|---|---|---|---|
| A | · — | J | · — — — | S | · · · |
| B | — · · · | K | — · — | T | — |
| C | — · — · | L | · — · · | U | · · — |
| D | — · · | M | — — | V | · · · — |
| E | · | N | — · | W | · — — |
| F | · · — · | O | — — — | X | — · · — |
| G | — — · | P | · — — · | Y | — · — — |
| H | · · · · | Q | — — · — | Z | — — · · |
| I | · · | R | · — · | SOS | · · · — — — · · · |
Is Morse Code Still Used?
- Amateur (ham) radio — operators still use CW (continuous wave / Morse) on the air
- Aviation — radio beacons (VORs) still broadcast their ID in Morse code
- Military — used in certain tactical communications
- Accessibility — people with motor disabilities can use a single-switch device to communicate in Morse
Frequently Asked Questions
A communication system using dots and dashes to represent letters and numbers. Developed by Samuel Morse in the 1830s for use with the electric telegraph.
· · · — — — · · · (three dots, three dashes, three dots). It's the universal distress signal — chosen for being simple and unmistakable.
Yes — by ham radio operators, in aviation navigation beacons, and as an accessibility communication tool.
Use PickConverter's free Text to Morse converter. Type your text and see the Morse output instantly, with optional audio playback.
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