Encode extremes to Base64

Base64 result: ZXh0cmVtZXM=

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: extremes to ZXh0cmVtZXM=

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
e	01100101
x	01111000
t	01110100
r	01110010
e	01100101
m	01101101
e	01100101
s	01110011

Step 2: Group Bits into 6-bit Chunks

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

011001 010111 100001 110100 011100 100110 010101 101101 011001 010111 0011

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011001	Z
010111	X
100001	h
110100	0
011100	c
100110	m
010101	V
101101	t
011001	Z
010111	X
0011	M

When combined, these characters form the encoded string: "ZXh0cmVtZXM="

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