In programming, Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating the data into a radix-64 representation. The term Base64 originates from a specific MIME content transfer encoding. Each non-final Base64 digit represents exactly 6 bits of data. Three 8-bit bytes can therefore be represented by four 6-bit Base64 digits.Read more on Wikipedia
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