Morse Code Translator

What this tool is used for

• Translating in either direction without switching tools.
• Checking a transcription against the intended message.
• Preparing a message to send by light or sound.
• Decoding a sequence from a puzzle or a challenge.
• Learning the code with the reference chart alongside.

Frequently Asked Questions

What are the timing rules?

Three levels, all defined in units of one dot: a dash is three units, the gap between symbols in a letter is one, between letters is three, and between words is seven. The rhythm is the code — the same symbols at wrong spacing decode to different letters.

Why is E a single dot and Q four symbols?

Because the code was frequency-optimised in the 1840s by counting type in a printer's case. Common letters got short codes, which is the same idea Huffman formalised a century later — Morse is a hand-built variable-length prefix code.

How is a word gap written down?

Conventionally as a slash or a double space. Morse itself has no characters at all — it is a timing pattern — so every written representation is a transcription convention rather than part of the code.

Is SOS three separate letters?

It is sent as one unbroken symbol, `...---...`, with no letter gaps. Written as S O S it is only a mnemonic; the distress signal was chosen for being unmistakable as a continuous rhythm, and it stands for nothing.

Can it encode any text?

Letters, digits and a limited punctuation set. There is no case distinction, and accented characters have regional variants that never fully standardised — which is why international Morse and the original American Morse differ, and why the latter is effectively extinct.

Common errors and gotchas

• Using a single space for both letter and word gaps, which collapses the message into one run.
• Assuming all punctuation is supported, since much of it has no assigned sequence.
• Transcribing a dash as two dots by ear, which yields a different letter rather than an error.
• Expecting case to survive, when Morse has only one case.
• Mixing separator conventions between the two directions, so a round trip does not match.