Decode a3k= from Base64

Decoded result: ky

Word Visualization: ky

Base64 text to decode from

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

Select output encoding

Process each line as a separate Base64 string

Do not store in history

Live mode

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

Base64 Decoded Result

Add file to Decode

Charset:

Click to upload or drag and drop

Decoding Process: a3k= to ky

About the '=' Padding

The '=' at the end of "a3k=" is padding. Base64 encoding requires the input length to be divisible by 4. When it's not, '=' characters are added as padding. These padding characters are represented as '000000' in binary but are not used in the final decoded output.

Step 1: Map Base64 Characters to Binary

Base64 Character	Binary Value	Decimal Value
a	011010	26
3	110111	55
k	100100	36
=	padding (000000)	-

Step 2: Group Bits into Bytes

The binary string is grouped into 8-bit chunks (1 byte each):

01101011 01111001 00

Step 3: Convert Binary to ASCII

Binary Value	ASCII Character
01101011	k
01111001	y
00

When combined, these characters form the decoded string: "ky"

Word Statistics: ky

General Statistics

Length: 2 characters
Vowels: 0
Consonants: 2

Letter Frequency

Letter	Frequency
k	1
y	1

Encode ky

Related Conversion Tools

Base64 Encode