Encode Text to Base64

What is Base 64 encode

Base64 is not for encryption purposes and is not secure. It is an encoding mechanism only.

Encodes a string so that it conforms to the Base64 Data Encodings specification (RFC 4648).

Base64 encoded data is a string of character that contains only a-z, A-Z, 0-9, + and / characters and is often used in situations when sending non-text information via a text only transmission protocol. The string contains text-printable characters.

The = character is a padding character added at the end of the encoding in case the input data is not dividable by 3. If the last 24 bits contain only one character, that character is encoded into two characters and the last two spots will be padded with the characters ==. If the last group contains two characters the encoding will have just one = character.

The steps to convert the Base64 encoded data to ASCII are:

1. Take each letter and find its position offset (0-63) within ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789+/ to give us 11 decimal numbers
2. These decimal numbers are converted to bit strings, each with 6 bits
3. As there was a '=' at the end of the Base 64 encoded data, remove 2 '0's from the end of the bit string. Had there been two '='s at the end of the Base 64 encoded data, 4 '0's would have been removed from the end of the bit string.
4. Split the bits into groups of 8
5. Use each group of 8 bits to be the ASCII code for an ASCII character or ASCII control code

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Some practical benefits of base 64 encoder

When you have some binary data that you want to transfer across a network, you generally do not stream the bits and bytes over the wire in a raw format. In addition, some protocols may interpret your binary data as control characters will lead to corrupted data.

To get around this, people encode the binary data into characters. Base 64 is one of these types of encodings. Base 64 encoding is a way of taking binary data and turning data into text so that it's more easily transmitted in things like e-mail and HTML form data.
The only downside is that base64 encoding will require around 33% more space than regular strings.

Base64 is a group of similar binary to text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation. The term Base64 originates from a specific MIME content transfer encoding.

Binary Coded Decimal is a type of binary encoding that uses 4 binary numbers to represent the 10 digits from 0 to 9 in a decimal number.