Encode circa to Base64

Base64 result: Y2lyY2E=

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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Base64 Encoded Result

Encode file to Base64 format

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Encoding Process: circa to Y2lyY2E=

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
i	01101001
r	01110010
c	01100011
a	01100001

Step 2: Group Bits into 6-bit Chunks

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

011000 110110 100101 110010 011000 110110 0001

Step 3: Convert Binary to Base64

Binary Value	Base64 Character
011000	Y
110110	2
100101	l
110010	y
011000	Y
110110	2
0001	E

When combined, these characters form the encoded string: "Y2lyY2E="

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