Encode fprintf to Base64

Base64 result: ZnByaW50Zg==

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Encoding Process: fprintf to ZnByaW50Zg==

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
f	01100110
p	01110000
r	01110010
i	01101001
n	01101110
t	01110100
f	01100110

Step 2: Group Bits into 6-bit Chunks

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

011001 100111 000001 110010 011010 010110 111001 110100 011001 10

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011001	Z
100111	n
000001	B
110010	y
011010	a
010110	W
111001	5
110100	0
011001	Z
10	g

When combined, these characters form the encoded string: "ZnByaW50Zg=="

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