Morse playground
Turn letters into sound, solve a listening challenge and try a telegraph key. No account needed.
A key, a circuit, a receiver
Pressing a telegraph key closes a circuit. Current flows and the receiver responds; releasing the key breaks the circuit. Short and long signals, together with the silences, carry a message.
01 · Text → Morse
Use A–Z, 0–9 and spaces. This activity uses modern International Morse, not the early American system.
Listen & guess
Start a round, listen to one letter, then type your answer. Replay as often as you like.
Score ·
Build the signal
Make the displayed letter using the dot and dash buttons. A dot lasts one unit; a dash lasts three.
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Teaching tones are generated in your browser. They are not historical recordings. No microphone is used; your practice text is not sent to the server.
International Morse chart
Timing: dot 1 · dash 3 · gap within a letter 1 · gap between letters 3 · gap between words 7. The gaps are part of the code.
−−−−−·−−−−··−−−···−−····−·····−····−−···−−−··−−−−··−−···−·−·−·····−·−−········−−−−·−·−··−−−·−−−·−−·−−·−·−····−··−···−·−−−··−−·−−−−··From radio history to radio today
World Radio Now helps you listen to live stations around the world. Explore a historical voice, then discover music, news and culture on today’s airwaves.