Base16 Encode & Decode

In mathematics and computing, the Base16 (also hexadecimal or simply hex) numeral system is a positional numeral system that represents numbers using a radix (base) of sixteen. Unlike the decimal system representing numbers using ten symbols, Base16 uses sixteen distinct symbols, most often the symbols "0"–"9" to represent values 0 to 9, and "A"–"F" (or alternatively "a"–"f") to represent values from 10 to 15.


Base16 Encoder & Decoder that alow you to convert data between Base16 and text.


Base16 Encoder & Decoder can be useful for various purposes, such as:

Encoding or decoding text.

Encrypting or decrypting data using hexadecimal keys or passwords.

Generating or verifying checksums or hashes of data using hexadecimal.

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Atbash Cipher is a substitution cipher with a specific key where the letters of the alphabet are reversed. I.e. all 'A's are replaced with 'Z's, all 'B's are replaced with 'Y's, and so on. It was originally used for the Hebrew alphabet, but can be used for any alphabet.

Atbash Cipher

Atbash Cipher is a substitution cipher with a specific key where the letters of the alphabet are reversed. I.e. all 'A's are replaced with 'Z's, all 'B's are replaced with 'Y's, and so on. It was originally used for the Hebrew alphabet, but can be used for any alphabet.
Beaufort Cipher, is a polyalphabetic substitution cipher that is similar to the Vigenère cipher, except that it enciphers characters in a slightly different manner.

Beaufort Cipher

Beaufort Cipher, is a polyalphabetic substitution cipher that is similar to the Vigenère cipher, except that it enciphers characters in a slightly different manner.
Bifid Cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion.

Bifid Cipher

Bifid Cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion.
Four-Square Cipher encrypts pairs of letters (like playfair), which makes it significantly stronger than substitution ciphers etc. since frequency analysis becomes much more difficult.

Four-Square Cipher

Four-Square Cipher encrypts pairs of letters (like playfair), which makes it significantly stronger than substitution ciphers etc. since frequency analysis becomes much more difficult.