Encode downloading to Base64

Base64 result: ZG93bmxvYWRpbmc=

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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Encode base64 strings in real-time as you type or paste.

Base64 Encoded Result

Encode file to Base64 format

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Encoding Process: downloading to ZG93bmxvYWRpbmc=

About the '=' Padding

Base64 encoding requires the input length (in bytes) to be divisible by 3. If it's not, padding is added: One '=' character is added when the input length modulo 3 equals 2. This ensures the encoded output is properly aligned.

Step 1: Map ASCII Characters to Binary

ASCII Character	Binary Value
d	01100100
o	01101111
w	01110111
n	01101110
l	01101100
o	01101111
a	01100001
d	01100100
i	01101001
n	01101110
g	01100111

Step 2: Group Bits into 6-bit Chunks

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

011001 000110 111101 110111 011011 100110 110001 101111 011000 010110 010001 101001 011011 100110 0111

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011001	Z
000110	G
111101	9
110111	3
011011	b
100110	m
110001	x
101111	v
011000	Y
010110	W
010001	R
101001	p
011011	b
100110	m
0111	c

When combined, these characters form the encoded string: "ZG93bmxvYWRpbmc="

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