· — · Morse Tool

Morse Code Converter

Convert text to Morse code and decode Morse back to text. Play audio tones, see visual waveform, and browse the full reference table.

Quick:
Text Input0 chars
Morse Output
Output appears here…
Waveform appears after conversion
Play as audio
Convert text first to enable playback
15 WPM
Reference — click any character to insert

How does Morse code work?

Morse code encodes text as sequences of short signals (dots · called "dits") and long signals (dashes — called "dahs"). A dash lasts three times as long as a dot. Letters are separated by a pause equal to three dots; words by seven dots.

Developed by Samuel Morse and Alfred Vail in the 1830s for telegraph communication, the International Morse Code (ITU) is still used today by amateur radio operators worldwide.

🆘 Emergency signaling

SOS (· · · — — — · · ·) is the universal distress signal. Learning basic Morse can be a genuine survival skill.

📻 Amateur radio

Ham radio operators still use Morse code for long-distance communication. "73" means "best regards" in ham radio tradition.

🎮 Puzzles & escape rooms

Morse code appears in ARGs, escape rooms, and puzzle games. Use this decoder to crack Morse messages instantly.

🎓 Learning by ear

Audio playback at adjustable WPM teaches you to recognize Morse code by sound — the way operators actually use it.

Frequently asked questions

Type or paste your text in the input box — conversion happens instantly. Each letter and number converts to its ITU standard Morse code. Characters not in the Morse alphabet are skipped with a note.
Switch to "Morse → Text" mode. Enter dots (.) and dashes (-) with a single space between letters and a slash (/) between words, then click Convert. The tool validates each symbol before decoding.
A dot (·) is a short signal called a dit. A dash (—) is a long signal called a dah, lasting three times as long as a dot. Every letter and number has a unique dot-dash pattern standardized by the ITU.
Yes — after converting, click the ▶ Play button to hear the Morse code as audio tones using your browser's built-in Web Audio API. Use the WPM slider to adjust speed from 5 to 40 words per minute.
SOS is · · · — — — · · · (three dots, three dashes, three dots). It is the internationally recognized distress signal, chosen because it is simple and distinctive. Click the SOS button above to hear and see it instantly.
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