Tools / Morse Code Decoder
Morse Code Decoder
Decode Morse code to plain text or encode text to Morse code. Separate letters with a single space and words with three spaces (or a /). A built-in reference table lets you verify any symbol.
Separate letters with a single space, words with 3 spaces or a /.
Paste Morse code above to decode it.
Morse code reference
How Morse code works
Morse code represents each letter and digit as a sequence of short signals (dots) and long signals (dashes). The original system was designed for telegraph operators; modern use is mainly in amateur radio and, frequently, CTF challenges.
In picoCTF challenges, Morse code often appears as a WAV audio file with alternating tones. You can decode the audio by listening, or use a tool like morse2ascii (Linux) to convert the WAV to dot-dash notation, then paste the result here.
Challenges solved with this tool: picoCTF 2022 -- morse-code.