Encode roms to Base64

Base64 result: cm9tcw==

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

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Base64 Encoded Result

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Encoding Process: roms to cm9tcw==

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
r	01110010
o	01101111
m	01101101
s	01110011

Step 2: Group Bits into 6-bit Chunks

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

011100 100110 111101 101101 011100 11

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011100	c
100110	m
111101	9
101101	t
011100	c
11	w

When combined, these characters form the encoded string: "cm9tcw=="

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