Decode YXBwcm94aW1hdGlvbg== from Base64

Decoded result: approximation

Word Visualization: approximation

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: YXBwcm94aW1hdGlvbg== to approximation

About the '=' Padding

The '=' at the end of "YXBwcm94aW1hdGlvbg==" 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
Y	011000	24
X	010111	23
B	000001	1
w	110000	48
c	011100	28
m	100110	38
9	111101	61
4	111000	56
a	011010	26
W	010110	22
1	110101	53
h	100001	33
d	011101	29
G	000110	6
l	100101	37
v	101111	47
b	011011	27
g	100000	32
=	padding (000000)	-
=	padding (000000)	-

Step 2: Group Bits into Bytes

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

01100001 01110000 01110000 01110010 01101111 01111000 01101001 01101101 01100001 01110100 01101001 01101111 01101110 0000

Step 3: Convert Binary to ASCII

Binary Value	ASCII Character
01100001	a
01110000	p
01110000	p
01110010	r
01101111	o
01111000	x
01101001	i
01101101	m
01100001	a
01110100	t
01101001	i
01101111	o
01101110	n
0000

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

Word Statistics: approximation

General Statistics

Length: 13 characters
Vowels: 6
Consonants: 7

Letter Frequency

Letter	Frequency
a	2
p	2
r	1
o	2
x	1
i	2
m	1
t	1
n	1

Encode approximation

Related Conversion Tools

Base64 Encode