Morse Code Translator

Choose Text → Morse to encode a message, or Morse → Text to decode written dots and dashes. The result updates immediately as you type.

Copy the output with one button, or use the central swap control to move a fully supported result back into the input and reverse the direction.

The compact audio controls let you choose playback speed in words per minute and select a tone frequency before listening.

Examples, unsupported-item reports, normalisation notices, word and signal counts, spacing guidance, and the Morse reference all stay on the same page.

Every supported character is replaced with its International Morse sequence. One visible space separates characters, while a slash separates words.

For example, HELLO WORLD becomes .... . .-.. .-.. --- / .-- --- .-. .-.. -...

International Morse does not preserve letter case, so uppercase and lowercase text produce the same signals.

Unsupported text is represented by [?] and listed below the result instead of being silently deleted.

Enter each Morse character as its own dot-and-dash group. Use one or two spaces between adjacent characters.

Use a slash between words. The decoder also accepts three or more spaces, a line break, or a vertical bar as practical word boundaries.

For example, .... . .-.. .--. / -- . decodes to HELP ME.

An unknown Morse group becomes � and is listed below the result so its spelling and spacing can be corrected.

Dots and dashes identify signal elements, but spacing identifies where one character ends and another begins.

The written sequence ... --- ... clearly contains S, O, and S. Written continuously as ...---..., the intended character boundaries are no longer explicit to a general text decoder.

This translator therefore requires boundaries rather than guessing among several possible segmentations.

A slash used between written groups is a word-separator convention. A literal slash character is encoded as -..-..

The core table supports the Latin letters A–Z, accented É, digits 0–9, and the written characters implemented from ITU-R M.1677-1.

The on-page reference separates letters, numbers, ITU characters, and common converter extensions so their status is clear.

Smart quotation marks, typographic dashes, bullet-style dots, underscores, a full-width slash, and several non-breaking spaces are normalised to supported equivalents.

Any accepted normalisation is reported beneath the result rather than being hidden.

The built-in player generates a sine-wave tone locally through the browser. It does not download a recording or send the message to an audio service.

A dot lasts one timing unit and a dash lasts three. Elements inside one character are separated by one silent unit, characters by three units, and words by seven units.

The player derives dot duration from 1.2 ÷ WPM. Increasing WPM shortens every signal and gap proportionally without changing the encoded characters.

Tone frequency changes pitch only. It does not change the Morse message or its timing.

This player uses one speed for both character formation and overall message timing, preserving the standard dot, dash, character-gap, and word-gap proportions.

Farnsworth training keeps characters relatively fast while extending the spaces between characters and words to create a lower effective message speed.

Separate Farnsworth controls are not implemented here, so the selected WPM represents ordinary standard timing.

Morse code changes how characters are represented, but it does not conceal their meaning from someone who knows the code or uses a translator.

It is useful for learning, demonstrations, puzzles, radio-related study, accessibility experiments, and converting written messages.

Do not treat a Morse message as confidential merely because it appears as dots and dashes.

The decoder works with written Morse groups. It does not analyse microphone input, audio files, radio noise, video, flashing lights, photographs, or waveform timing.

Signal recognition requires additional work such as frequency detection, noise filtering, timing measurement, threshold selection, and automatic speed estimation.

The tool also does not infer missing character boundaries from a continuous symbol stream or interpret operator procedure, Q codes, and prosigns by context.

Translation and tone generation run locally in the browser and do not require an account.

The message is not intentionally sent to a translation server, saved between visits, or included in the page URL.

Copy only the output you intend to keep. Refreshing or closing the page can remove the current work.