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Substitution Cipher
Monoalphabetic substitution with keyword or randomized alphabet.
The substitution cipher replaces every plaintext letter with a different ciphertext letter. Unlike a Caesar shift, the cipher alphabet can be completely jumbled. Use a keyword, phrase, full alphabet, or random alphabet.
Transform
Find & Replace
Group
Every
chars
Enter a keyword, phrase, or alphabet and the rest will be calculated for you.
Transform
Find & Replace
Group
Every
chars