Encode clusters to Base64

Base64 result: Y2x1c3RlcnM=

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

Do not store in history

Split lines into chunks

Live mode

Encode base64 strings in real-time as you type or paste.

Base64 Encoded Result

Encode file to Base64 format

Charset:

Click to upload or drag and drop

Encoding Process: clusters to Y2x1c3RlcnM=

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
l	01101100
u	01110101
s	01110011
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:

011000 110110 110001 110101 011100 110111 010001 100101 011100 100111 0011

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011000	Y
110110	2
110001	x
110101	1
011100	c
110111	3
010001	R
100101	l
011100	c
100111	n
0011	M

When combined, these characters form the encoded string: "Y2x1c3RlcnM="

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