Cabinet Noir>Practice / Caesar cipher

Not sure which cipher? Identify it
Every letter of the message is shifted by the same fixed number of positions in the alphabet.
Typesubstitution cipher
Breaking ittrivial to break
Era1st century BC
NameNamed after Julius Caesar, who reportedly used a shift of 3 in private correspondence.
Modesencrypt · decrypt

Practice

Caesar cipher
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Fear itself

Easy
WKHRQOBWKLQJZHKDYHWRIHDULVIHDUWKLWVHOI
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Eliminate the impossible

Medium
HSPYJZFSLGPPWTXTYLEPOESPTXAZDDTMWPHSLEPGPCCPXLTYDSZHPGPCTXACZMLMWPXFDEMPESPECFES
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Friends, Romans, countrymen

Hard
COFBKAPOLJXKPZLRKQOVJBKIBKAJBVLROBXOPFZLJBQLYROVZXBPXOKLQQLMOXFPBEFJ
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Created by Denys Grybov in 2021

v.0.4.0 // released on 18.10.2026