Cyphers / Encryption Menu
Rot 13 Cypher
Probably the simplest cypher in existance.
Simple, but many variations to play with.
barely counts as a cypher, but can be fun.
is one of the classic ways of encoding a secret.
isn't very well known, but well worth studying.
is a favourite of puzzle books.
is a close relative of both hexadecimal notation and of Base-64 encoding.
is one of the most secure simple cyphers available.
is great for the kind of 'code' you see in the movies, where a message has been hidden in plain sight.
Convert to or from Character Codes
either as Decimal, Hex or Binary
Letter Frequency Analyzer
Online MD5 / SHA encryptor
Have you ever wanted to freak people out by
writing online text upside down?
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