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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SM4 is a 128-bit block cipher, currently established as a national standard (GB/T 32907-2016) of China. Multiple block cipher modes are supported. It complete implementation of SM4 cipher encryption/decryption with ECB, CBC, CFB, OFB, CTR block modes.

SM4 Cipher

SM4 is a 128-bit block cipher, currently established as a national standard (GB/T 32907-2016) of China. Multiple block cipher modes are supported. It complete implementation of SM4 cipher encryption/decryption with ECB, CBC, CFB, OFB, CTR block modes.
Random Password Generator can create random passwords of a specified length online. By setting whether the password includes lowercase letters (a-z), uppercase letters (A-Z), digits (0-9), and special characters, it can randomly generate passwords between 4 and 32 characters in length.

Random Password Generator

Random Password Generator can create random passwords of a specified length online. By setting whether the password includes lowercase letters (a-z), uppercase letters (A-Z), digits (0-9), and special characters, it can randomly generate passwords between 4 and 32 characters in length.
Encode & decode secret messages using invisible Unicode characters (ZWSP, ZWNJ, ZWJ). Perfect for CTF, steganography, or covert communication. No install, copy-paste ready.

Zero-Width Characters Cipher

Encode & decode secret messages using invisible Unicode characters (ZWSP, ZWNJ, ZWJ). Perfect for CTF, steganography, or covert communication. No install, copy-paste ready.
Try this interactive Burrows-Wheeler Transform (BWT) Cipher to safely scramble any text while keeping its original meaning intact—and reverse the transformation anytime to recover the exact original message.

Burrows-Wheeler Transform Cipher

Try this interactive Burrows-Wheeler Transform (BWT) Cipher to safely scramble any text while keeping its original meaning intact—and reverse the transformation anytime to recover the exact original message.