Base64 Decode Online

Decode base64 string

This form allows you to convert base64 encoded data to decode string, so paste your encoded string data below.

About base64 Decode online

The "Base64 Decode" is a free online tool that helps you to convert base64 encoded data to decode string.

The base64 encoding scheme is generally used if there is a need to encode binary data, in particular when that data is to be stored and transferred using media that is designed to deal with text. This is to help ensure that the data remains intact and unchanged during transport. Base64 is commonly used in various applications, including email via MIME, as for storing complex data in XML or JSON.

Base64 is a more or less common way to transmit (encode, in short, but for the purpose of transmitting) any kind of binary data. Basically, every 6 bits of the input are encoded in a 64-character alphabet. The "standard" alphabet uses A-Z, a-z, 0-9, and + and /, with = as the fill character.

Index Binary Char Index Binary Char Index Binary Char Index Binary Char
0 000000 A 16 010000 Q 32 100000 g 48 110000 w
1 000001 B 17 010001 R 33 100001 h 49 110001 x
2 000010 C 18 010010 S 34 100010 i 50 110010 y
3 000011 D 19 010011 T 35 100011 j 51 110011 z
4 000100 E 20 010100 U 36 100100 k 52 110100 0
5 000101 F 21 010101 V 37 100101 l 53 110101 1
6 000110 G 22 010110 W 38 100110 m 54 110110 2
7 000111 H 23 010111 X 39 100111 n 55 110111 3
8 001000 I 24 011000 Y 40 101000 o 56 111000 4
9 001001 J 25 011001 Z 41 101001 p 57 111001 5
10 001010 K 26 011010 a 42 101010 q 58 111010 6
11 001011 L 27 011011 b 43 101011 r 59 111011 7
12 001100 M 28 011100 c 44 101100 s 60 111100 8
13 001101 N 29 011101 d 45 101101 t 61 111101 9
14 001110 O 30 011110 e 46 101110 u 62 111110 +
15 001111 P 31 011111 f 47 101111 v 63 111111 /
Padding =

if you want to more information then visit the Base64 on Wikipedia

How it Works?

Just paste your base64 encoded data into the textarea above and click to the button "Decode" and you will get result.

Example of base64 decode

Input: aGVsbG8gd29ybGQ=

Output: hello world

Base64 Decoder
Base64 Encoder