what is base64 encoding

Base64 encoding is a binary-to-text encoding scheme that represents binary data in sequences of 24 bits that can be represented by four 6-bit Base64 digits. It is designed to carry data stored in binary formats across channels that only reliably support text content. Base64 takes any form of data and transforms it into a long string of plain text. The encoding process involves breaking binary data into groups of 6 bits and then representing each group with a printable ASCII character. The resulting string is always larger than the original binary data. Base64 encoding is often used to represent binary data in a text format that can be easily transmitted over networks or stored in a text file. It is particularly prevalent on the World Wide Web where one of its uses is the ability to embed image files or other binary assets inside textual assets such as HTML and CSS files. Base64 encoding can also be helpful when fairly lengthy identifying information is used in an HTTP environment. It is not a secure way to encrypt data, as it can be easily decoded.