Data Encoding Tool

Base64 Encoder/Decoder

Convert text to Base64 encoding for safe data transmission and decode Base64 strings back to readable text. Essential for developers and data processing workflows.

Input Text

0 characters Plain text

Base64 Output

Encoded/decoded result will appear here

0 characters Copied to clipboard!
0%
Encoding Efficiency
0
Size Change
Valid
Data Validity
0
Padding Characters

Data Visualization

Base64 Character Breakdown

Enter text to see character analysis

Binary Representation

Enter text to see binary representation

How Base64 Encoding Works

1
Convert to Binary: Each character is converted to its 8-bit binary representation.
2
Group by 6 bits: The binary data is regrouped into 6-bit chunks.
3
Map to Base64: Each 6-bit group maps to a character from the Base64 alphabet.
4
Add Padding: If needed, '=' characters are added for padding.

Common Use Cases

Email Attachments: Encode binary files for email transmission
Data URIs: Embed images directly in HTML/CSS
API Authentication: Encode credentials for basic auth
Image Storage: Store images as text in databases
Web Development: Handle binary data in JSON responses

Base64 Alphabet

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
0 1 2 3 4 5 6 7 8 9 + / = (padding)

Base64 uses 64 characters: 26 uppercase letters, 26 lowercase letters, 10 digits, and 2 symbols (+ and /).

The '=' character is used for padding when the input data length is not divisible by 3.