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Vigenere cipher breaker

This online calculator tries to decode Vigenere cipher without knowing the key. It uses the index of coincidence technique.

Creative Commons Attribution/Share-Alike License 3.0 (Unported)

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PLANETCALC, Vigenere cipher breaker

Vigenere cipher breaker

Frequency of Letters

arrow_upwardarrow_downwardLetterarrow_upwardarrow_downwardFrequency
Items per page:

Key
 
Decoded message
 
Decoded with guess key
 
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Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Vigenere cipher breaker

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