|URL-encoded string decoder|
This converter decodes URL-encoded string (percent-encoded characters). It converts reserved characters as well as UTF-8 characters
|Standard Galactic Alphabet decoder|
This online calculator can decode message written with standard galactic alphabet symbols
|Vigenère cipher breaker|
This online calculator tries to decode Vigenère cipher without knowing the key. It uses the index of coincidence technique.
|Substitution cipher decoder|
This online calculator tries to decode substitution cipher without knowing the key. It uses genetic algorithm over text fitness function to break the encoded text. The calculator logic is explained below the calculator.
This online calculator performs Kasiski examination of an entered text using trigrams in attempt to discover a key length
|Automated Vigenère cipher decoder|
This online calculator provides aid in finding Vigenère cipher key if you can guess part of the encrypted text. It just automates some routine calculations, which you would perform manually otherwise.