Morse Code Translator

A Morse Code Translator converts ordinary text into Morse code - the dots and dashes used to send messages by sound, light, or radio - and converts Morse code back into readable text. Type "SOS" and you instantly get "... --- ...". Paste those dots and dashes back in and you get "SOS" again. It works with the full International Morse Code alphabet: all 26 letters, the digits 0-9, and the standard punctuation marks such as period, comma, question mark, and slash.

It is also a Morse code audio translator. Type "Call 911" and the output reads -.-. .- .-.. .-.. / ----. .---- .----, since every digit is five symbols long, which is why a Morse code translator for numbers produces longer strings than one for letters. Press Play to hear it as a 600 Hz tone. At the default Audio speed of 15 WPM a dot lasts 80 milliseconds and a dash 240; drag the slider down to 5 WPM for practice or up to 35 WPM for a faster copy.

Morse code represents each character as a unique sequence of short signals (dots, also called "dits") and long signals (dashes, or "dahs"). A single space separates letters and a forward slash separates words, which is the convention this translator follows for output and accepts when decoding. Because the mapping is one-to-one, encoding and decoding round-trip cleanly, so you can verify a message you received or prepare one to send.

Everything runs 100% in your browser. Whether you are learning Morse for an amateur radio license, decoding a signal from a puzzle or game, teaching the alphabet, or just curious what your name sounds like in dots and dashes, nothing you type is uploaded or logged. The translator also plays your Morse as audio beeps at an adjustable speed, and it keeps working offline once the page has loaded.

The International Morse standard is what is used here, which matters because the American variant still turns up in historical material and differs in several letters and most punctuation. Timing is the part that does not survive text: in real Morse a dash is three times the length of a dot, the gap between letters is three dots and between words is seven, and written Morse has to represent those with spacing conventions instead. That is why decoding depends on consistent separators, and why a transcription with irregular spacing can be ambiguous. Prosigns such as SOS are sent as one continuous symbol rather than three letters, so writing them as separate characters changes the meaning even though the dots and dashes look the same.