Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is used to transmit binary data over channels that only support ASCII text, such as email messages or HTTP requests.
In Base64, each three bytes of binary data are represented by four characters from a set of 64 characters, which consist of uppercase and lowercase letters, digits, and two additional characters, typically “+” and “/”.
The encoding process converts the binary data into its corresponding ASCII representation, while the decoding process converts the ASCII representation back into the original binary data. Base64 is widely used in web development and other computer applications for encoding and decoding data.