Used to encode plain text
string → binary → divided to 6 bits → decimal → base64
Uses 62 characters:
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz = 62 characters
0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/ = 64 characters