Encode preceded to Base64

Base64 result: cHJlY2VkZWQ=

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: preceded to cHJlY2VkZWQ=

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
p	01110000
r	01110010
e	01100101
c	01100011
e	01100101
d	01100100
e	01100101
d	01100100

Step 2: Group Bits into 6-bit Chunks

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

011100 000111 001001 100101 011000 110110 010101 100100 011001 010110 0100

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011100	c
000111	H
001001	J
100101	l
011000	Y
110110	2
010101	V
100100	k
011001	Z
010110	W
0100	Q

When combined, these characters form the encoded string: "cHJlY2VkZWQ="

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