Hex decode and encode

About Hex Decoder

Hex Decoder, is a easy to use tool start by typing or searching file, and click on convert to decode. After decoding, you can copy or save data as a txt file. This website also contain tutorial on how to decode or encode hex in different programming languages like PHP, Go, Java, Javascript, and Python.

Hexadecimal notation uses sixteen symbols to represent sixteen numerical values. Since, the decimal numbering system provides only ten digits (0 through 9), six additional symbols are used by hexadecimals A, B, C, D, E and F. Hexadecimals are widely used for denoting errors and in data transmission also.

Basics – Binary, ASCII and Decimal

Hexadecimal Usage

Computers do not actually work in hex, it always works on binary, then why we use hexadecimal numbers, two reason behind this.

It gives a more human-friendly representation, which is far more simpler then representing something in binary numbers. For small binaries we can use decimals, but big ones have quite large decimals you can see it in a given example. Hex take less space and having human-friendly output, that’s why used for denoting errors.

Hexadecimal: 2AF3
Decimal: 10995
Octal: 25363
Binary: 0010 1010 1111 0011

Second and the main, also used for encoding because some portal works on (ASCII only) scheme, so its difficult to work with (non-ASCII) characters because they take much space (More than 8 bits), at this time schemes like hex or base64 take place, basically they convert all non-ASCII character into ASCII ones (Hex ASCII string), now data can be transferred through (ASCII only portal) and on the receiver side hex gets decoded, now receiver can read it.

What is hexadecimal

In mathematics and computing, hexadecimal is a base 16 (hexa) number system, which means that it contains 16 unique symbols to represent data: the numbers from 0 to 9 and the letters from A to F.

This system is useful because it can represent each byte (8 bits) with two consecutive hexadecimal digits. This allows people to read hexadecimal numbers more easily than binary numbers.

This technique allows us to count hexadecimal numbers using our fingers and phalanges, as can be seen in the image. It allows us to count up to FF16 (255 in decimal).

Hexadecimal numbers are widely used by programmers and designers of computer systems. There are several notations to represent hexadecimal constants in programming languages. The prefix “0x” is the most widespread due to its use in Unix and C, it indicates that there will be a hexadecimal number below. Other authors prefer to use suffixes to represent hexadecimal values. For example, the hexadecimal number can be written like this 0x2AF3 or, in the case that a suffix is ​​used, the same number as 2AF316 (where the final 16 indicates that it is a hexadecimal) or 2AF3hex is also used a lot.