Base64 encode

Base64 is a standard for encoding both binary data (images, code) and text in any encoding in ASCII characters. 64 characters are used: large and small letters of the Latin alphabet (from A to Z and from a to z), numbers from 0 to 9 and the symbols +, /, as well as the symbol = as the ending. Base64 is most often used in email to encode all fields and attached files.