What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that converts binary data into ASCII characters. It uses 64 characters (A-Z, a-z, 0-9, +, /) to represent data, making it safe for transmission over text-based protocols.

Is my data safe when using this Base64 encoder?

Yes, completely! All encoding happens directly in your browser using JavaScript. Your text is never sent to any server, ensuring complete privacy and security.

Why would I need to encode text to Base64?

Base64 encoding is commonly used for embedding images in HTML/CSS, encoding email attachments, transmitting binary data in JSON, creating data URLs, and encoding authentication tokens in HTTP headers.

What's the difference between Base64 encoding and encryption?

Base64 encoding is NOT encryption. It's simply a way to represent binary data as text. Anyone can decode Base64 back to the original data. For security, use proper encryption methods.

Does Base64 encoding increase file size?

Yes, Base64 encoding increases data size by approximately 33%. This is because it converts every 3 bytes of binary data into 4 ASCII characters.

Base64 Encoder

UtilOS

Base64 Encoder

Wed, Dec 3 — 05:18 PM

Base64 Encoder

Text Encoding Tool

Base64 Encoder

Encode text to Base64 format instantly. All processing happens in your browser for complete privacy and security.

Input Text

0 characters

Base64 Output

Encoded output will appear here

How Base64 Encoding Works

Base64 encoding converts binary data into a text format using 64 different ASCII characters. It's commonly used to encode data for transmission over text-based protocols like HTTP, SMTP, and more.

Converts 3 bytes into 4 ASCII chars

Uses A-Z, a-z, 0-9, +, and /

Adds = padding when needed

Text Encoding Tool

Base64 Encoder

Encode text to Base64 format instantly. All processing happens in your browser for complete privacy and security.

Input Text

0 characters

Base64 Output

Encoded output will appear here

How Base64 Encoding Works

Base64 encoding converts binary data into a text format using 64 different ASCII characters. It's commonly used to encode data for transmission over text-based protocols like HTTP, SMTP, and more.

Converts 3 bytes into 4 ASCII chars

Uses A-Z, a-z, 0-9, +, and /

Adds = padding when needed