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Morse Code Translator: Text to Dots & Audio Beeps

Translate English text into Morse code dots and dashes, decode Morse back to text, and play real audio beeps.

Quick Answer:Morse code represents letters and numbers using short signals called dots (.) and long signals called dashes (-). A dash is three times the duration of a dot.

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How to Use the Morse Code Translator & Audio Player (ITU-R)

1Select your translation direction: Text to Morse or Morse to Text.
2Type your message into the input box.
3View the translated output instantly.
4Click 'Play Morse Audio Beeps' to hear the sound synthesized via your speakers, or copy the translation.

Formula & How It Works

ITU-R M.1677-1 Timing Standard

Dot = · (1 unit) | Dash = — (3 units) | Word Space = /

Dot duration = 1 unit. Dash duration = 3 units. Intra-character space = 1 unit. Inter-letter space = 3 units. Word space = 7 units (represented by /).

Worked Examples

Universal Distress Signal

Input: SOS

Explanation: S is three dots (...), O is three dashes (---).

Result: ... --- ...

Hello World

Input: HELLO WORLD

Explanation: Slash (/) separates words; spaces separate individual letters.

Result: .... . .-.. .-.. --- / .-- --- .-. .-.. -..

Decoding Morse Back to Text

Input: -.-. --.-

Explanation: Traditional amateur radio general call.

Result: CQ (Calling Any Station)

Frequently Asked Questions

What is the Morse code for SOS?▼

SOS is written as ... --- ... (three dots, three dashes, three dots).

How fast is Morse code sent?▼

Speed is measured in words per minute (WPM), typically based on the standard word 'PARIS'. Amateur operators typically transmit between 15 and 25 WPM.

How does the audio synthesizer work?▼

It uses the browser's Web Audio API to create a 650Hz sine wave oscillator, modulating volume according to ITU dot and dash timing.

Why is the slash (/) used in Morse code?▼

A forward slash (/) represents the space between two words, corresponding to a 7-unit pause.

Is this tool free?▼

Yes, 100% free with unlimited translation and audio playback.

Quick Reference & Conversion Table

Character	Morse Code	Character	Morse Code
A	.-	N	-.
B	-...	O	---
C	-.-.	P	.--.
D	-..	Q	--.-
E	.	R	.-.
F	..-.	S	...
G	--.	T	-

⚠️ Common Pitfalls to Avoid

•Omitting spaces between Morse letters, causing ambiguous combinations.
•Confusing hyphens and underscores for dots and dashes (use standard periods . and hyphens -).
•Using non-standard characters like emojis that have no valid Morse representation.

💡 Practical Real-World Uses

•Amateur (ham) radio CW communications and emergency signaling.
•Assistive technology communication devices and tactile accessibility aids.
•Military aviation training, scouting, and escape-and-evasion protocols.

American Morse vs International Morse Code

✓American Morse was created by Samuel Morse for wired landline telegraphs and used different length spaces inside letters.
✓International Morse Code (ITU) was standardized for wireless radio telegraphy and is the universal standard used globally today.

Last reviewed & updated: 2026-11-01

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