Encode unofficial to Base64

Base64 result: dW5vZmZpY2lhbA==

Encode text to Base64 format

For encoded binaries (like images, documents, etc.) use the file upload form below.

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Process each line as a separate Base64 string

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Base64 Encoded Result

Encode file to Base64 format

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Encoding Process: unofficial to dW5vZmZpY2lhbA==

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
o	01101111
f	01100110
f	01100110
i	01101001
c	01100011
i	01101001
a	01100001
l	01101100

Step 2: Group Bits into 6-bit Chunks

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

011101 010110 111001 101111 011001 100110 011001 101001 011000 110110 100101 100001 011011 00

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011101	d
010110	W
111001	5
101111	v
011001	Z
100110	m
011001	Z
101001	p
011000	Y
110110	2
100101	l
100001	h
011011	b
00	A

When combined, these characters form the encoded string: "dW5vZmZpY2lhbA=="

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