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Name
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.
Kasiski test
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.
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