Which way

Result

Overall speed below character speed adds Farnsworth spacing: each letter at full speed, with more room between them.

The link opens a page that reads it. Without the key, your friend has to crack it. The message travels after the # in the link, which a browser never sends to our server.

Morse code chart

Every letter, A to Z.

Where it comes from

Samuel Morse and Alfred Vail built a telegraph code in the 1830s, and the first public message crossed from Washington to Baltimore in 1844. The version used today is the international one, settled in Europe in the 1860s. It still works where nothing else does: by light, by sound, by tapping on a pipe.

Learned the Koch way: every character at full speed from day one, two at a time, so you hear each one as a single sound instead of counting dots.

A message worth knowing: What hath God wrought. The first message on Morse's line from Washington to Baltimore, 24 May 1844, chosen from the Book of Numbers.

Learn it by heart

This is the cipher desk from Covert Mail, our free app for learning codes. The app teaches Morse code a few characters at a time, plans practice around the ones you miss, and keeps an archive of famous real messages to unlock. It is coming soon to the App Store and Google Play.

Coming soon to the App Store and Google Play

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