Encode callback to Base64

Base64 result: Y2FsbGJhY2s=

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: callback to Y2FsbGJhY2s=

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
c	01100011
a	01100001
l	01101100
l	01101100
b	01100010
a	01100001
c	01100011
k	01101011

Step 2: Group Bits into 6-bit Chunks

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

011000 110110 000101 101100 011011 000110 001001 100001 011000 110110 1011

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011000	Y
110110	2
000101	F
101100	s
011011	b
000110	G
001001	J
100001	h
011000	Y
110110	2
1011	s

When combined, these characters form the encoded string: "Y2FsbGJhY2s="

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