Code library

Learn the pattern, then own the signal.

Pick a method to enter its learning island: study the signal, clear a checkpoint, then make a message on the practice bench. Your session progress stays visible while you learn.

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Session progress

Choose a code

6 methods

Learning island

Morse Beacon Island

A three-stop route for Morse Code.

Morse route

Stop 01
Read the flashes
Match dots, dashes, and pauses in the core key.
Go to stop
Stop 02
Confirm the distress call
Decode the SOS checkpoint before moving on.
Go to stop
Stop 03
Send a beacon
Turn a short message into a Morse practice signal.
Go to stop

Now decoding

Morse Code

Sound & light

Build letters from short dots and long dashes, separated by purposeful pauses.

Core reference

A · −

S · · ·

O − − −

SOS ··· −−− ···

Field note: Best for: audio, flashlights, and low-bandwidth signals.

Quick checkpoint

Check your recall

Practice bench

Translate a small signal

Your message

The active method is Morse Code. Translation happens in this browser for practice.

Encoded output

Morse

.... . .-.. .-.. ---