Cabinet Noir
>Decrypt / Caesar cipher
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Every letter of the message is shifted by the same fixed number of positions in the alphabet.
Type
substitution cipher
Breaking it
trivial to break
Era
1st century BC
Name
Named after Julius Caesar, who reportedly used a shift of 3 in private correspondence.
Modes
encrypt · decrypt
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Tool
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History
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Message
i
Rotation size
1
i
alphabet.custom
Latin
German
French
Russian
Ukrainian
i
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Created by Denys Grybov in 2021
v.0.4.0 // released on 18.10.2026