Encode predominantly to Base64

Base64 result: cHJlZG9taW5hbnRseQ==

Encode text to Base64 format

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Base64 Encoded Result

Encode file to Base64 format

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Encoding Process: predominantly to cHJlZG9taW5hbnRseQ==

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
p	01110000
r	01110010
e	01100101
d	01100100
o	01101111
m	01101101
i	01101001
n	01101110
a	01100001
n	01101110
t	01110100
l	01101100
y	01111001

Step 2: Group Bits into 6-bit Chunks

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

011100 000111 001001 100101 011001 000110 111101 101101 011010 010110 111001 100001 011011 100111 010001 101100 011110 01

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011100	c
000111	H
001001	J
100101	l
011001	Z
000110	G
111101	9
101101	t
011010	a
010110	W
111001	5
100001	h
011011	b
100111	n
010001	R
101100	s
011110	e
01	Q

When combined, these characters form the encoded string: "cHJlZG9taW5hbnRseQ=="

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