Semaphore Decoder & Sender — 9M2BUG
Practice reading semaphore flags or encode messages to send.
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Mode:
Decode single letters
Decode words (3-6 letters)
Encode / Send message
New
Show answer
Next
Your answer:
Submit
Score:
0
Attempts:
0
Message to encode (A–Z and space):
Play encoded message
Export current frame as SVG
How to play
Choose
Decode single letters
or
Decode words
to be shown semaphore signals — type the letter(s) you see and press Submit.
Use
Encode / Send message
to type text and animate the semaphore for each character.
Press
Show answer
to reveal the current answer (will count as attempt).
High Scores
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Reference — Semaphore letters
(legend)
Controls
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