Translate supported Latin text into International Morse symbols or decode spaced dot-and-dash groups.
The frame below runs the same code as this page, in the reader's own browser. Nothing is sent to us, and nothing is sent to you.
Pick a dark background and the text and panels follow it, so the frame stays readable on a dark page.
Encoding uppercases mapped letters and joins every signal group with one space while a word space becomes slash. Decoding recognizes slash or at least three spaces between words, one space between characters, and writes ? for an unknown signal group.
SOS
... --- ...
Amateur-radio lessons check character patterns, scouting activities encode short messages, and telegraph demonstrations distinguish symbols from transmission timing.