Base64 Encode/Decode

Base64 is an encoding scheme that represents binary data using 64 printable characters. It is commonly used to transmit or store binary data in systems designed to handle text data, such as email attachments, URL parameters, or JSON data.

Base64 encoding converts every 3 bytes (24 bits) of data into 4 Base64 characters. The encoding process includes:

1. Dividing the binary data into groups of 6 bits each.

2. Mapping each 6-bit group to the corresponding character in the Base64 character table.

3. Padding the last group with "=" if it contains fewer than 6 bits.

The Base64 character table includes A-Z, a-z, 0-9, along with "+" and "/", making a total of 64 characters. The encoded data is typically about 33% larger than the original data, but it ensures safe transmission in plain text environments.

Base64 is not an encryption algorithm but rather an encoding method—anyone can decode Base64-encoded data. If you need to protect data security, you should use a genuine encryption algorithm instead of Base64.