EverCrack is an Open-Source (GPL) Cryptanalysis Engine. EverCrack performs cryptanalysis on simple substitution and transposition ciphers. EverCrack currently can crack up to 4000 words in miliseconds. EverCrack actually increases in speed as the size of the cipher-text increases making it an O(n) algorithm in terms of efficiency. It can also crack monoalphabetic substitution ciphers in 8 languages: English, German, French, Spanish, Italian, Dutch, Swedish and Portuguese.