Encode unexpected to Base64

Base64 result: dW5leHBlY3RlZA==

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Encoding Process: unexpected to dW5leHBlY3RlZA==

About the '=' Padding

Base64 encoding requires the input length (in bytes) to be divisible by 3. If it's not, padding is added: Two '=' characters are added when the input length modulo 3 equals 1. This happens because the input length leaves a remainder of 1 when divided by 3, indicating that two more bytes are needed to complete the 3-byte group. This ensures the encoded output is properly aligned.

Step 1: Map ASCII Characters to Binary

ASCII Character	Binary Value
u	01110101
n	01101110
e	01100101
x	01111000
p	01110000
e	01100101
c	01100011
t	01110100
e	01100101
d	01100100

Step 2: Group Bits into 6-bit Chunks

The binary string is grouped into 6-bit chunks for Base64 encoding:

011101 010110 111001 100101 011110 000111 000001 100101 011000 110111 010001 100101 011001 00

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011101	d
010110	W
111001	5
100101	l
011110	e
000111	H
000001	B
100101	l
011000	Y
110111	3
010001	R
100101	l
011001	Z
00	A

When combined, these characters form the encoded string: "dW5leHBlY3RlZA=="

Related Conversion Tools

Base64 Decode

About the '=' Padding

Step 1: Map ASCII Characters to Binary

Step 2: Group Bits into 6-bit Chunks

Step 3: Convert Binary to Base64

More Base64 encodings