Encode newsletters to Base64

Base64 result: bmV3c2xldHRlcnM=

Encode text to Base64 format

For encoded binaries (like images, documents, etc.) use the file upload form below.

Destination newline separator

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: newsletters to bmV3c2xldHRlcnM=

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
n	01101110
e	01100101
w	01110111
s	01110011
l	01101100
e	01100101
t	01110100
t	01110100
e	01100101
r	01110010
s	01110011

Step 2: Group Bits into 6-bit Chunks

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

011011 100110 010101 110111 011100 110110 110001 100101 011101 000111 010001 100101 011100 100111 0011

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011011	b
100110	m
010101	V
110111	3
011100	c
110110	2
110001	x
100101	l
011101	d
000111	H
010001	R
100101	l
011100	c
100111	n
0011	M

When combined, these characters form the encoded string: "bmV3c2xldHRlcnM="

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