Encode instructed to Base64

Base64 result: aW5zdHJ1Y3RlZA==

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: instructed to aW5zdHJ1Y3RlZA==

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
i	01101001
n	01101110
s	01110011
t	01110100
r	01110010
u	01110101
c	01100011
t	01110100
e	01100101
d	01100100

Step 2: Group Bits into 6-bit Chunks

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

011010 010110 111001 110011 011101 000111 001001 110101 011000 110111 010001 100101 011001 00

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011010	a
010110	W
111001	5
110011	z
011101	d
000111	H
001001	J
110101	1
011000	Y
110111	3
010001	R
100101	l
011001	Z
00	A

When combined, these characters form the encoded string: "aW5zdHJ1Y3RlZA=="

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