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• A1Z26 cipher

  A1Z26 is very simple direct substitution cypher, where each alphabet letter is replaced by its number in the alphabet.

• Atbash cipher

  This calculator allows you to encrypt and decrypt text with Atbash method

• Caesar cipher

  Calculator encrypts entered text by using Caesar cipher. Non-alphabetic symbols (digits, whitespaces, etc.) are not transformed.

• Hill cipher

  This calculator uses Hill cipher to encrypt/decrypt a block of text

Playfair cipher

This online calculator encrypts and decrypts a message given Playfair cipher keyword. Non-alphabetic symbols (digits, whitespaces, etc.) are ignored.

Playfair cipher

Attack at dawn Text

Playfair keyword

ActionEncrypt Decrypt

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PLANETCALC, Playfair cipher

• PATHFINDER cipher checker

  This online calculator decrypts digits encrypted by PATHFINDER type of cipher.

• Rail fence cipher

  This article contains two calculators, first can be used to encode message with the rail fence cipher, second can be used to crack message encoded with the rail fence cipher by brute force. Decoded simply outputs decoded message for different number of "rails".

• Standard Galactic Alphabet decoder

  This online calculator can decode message written with standard galactic alphabet symbols