Encode autobiography to Base64

Base64 result: YXV0b2Jpb2dyYXBoeQ==

Encode text to Base64 format

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Process each line as a separate Base64 string

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Base64 Encoded Result

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Encoding Process: autobiography to YXV0b2Jpb2dyYXBoeQ==

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
a	01100001
u	01110101
t	01110100
o	01101111
b	01100010
i	01101001
o	01101111
g	01100111
r	01110010
a	01100001
p	01110000
h	01101000
y	01111001

Step 2: Group Bits into 6-bit Chunks

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

011000 010111 010101 110100 011011 110110 001001 101001 011011 110110 011101 110010 011000 010111 000001 101000 011110 01

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011000	Y
010111	X
010101	V
110100	0
011011	b
110110	2
001001	J
101001	p
011011	b
110110	2
011101	d
110010	y
011000	Y
010111	X
000001	B
101000	o
011110	e
01	Q

When combined, these characters form the encoded string: "YXV0b2Jpb2dyYXBoeQ=="

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