Free Online Base64 Encoder and Decoder

The Base64 Encoder / Decoder allows you to convert text into Base64 format or decode Base64 data back into readable text instantly. Base64 encoding is commonly used in web development, data transmission, and security systems.

This tool works directly in your browser, meaning your data stays private and is never sent to any server.

How to Use the Base64 Tool

Enter or paste the text you want to encode or decode.
Click the Encode button to convert text to Base64.
Click the Decode button to convert Base64 back to text.
Use the Copy button to copy the result.

Features of Our Base64 Tool

Instant encoding and decoding
Works completely in the browser
Fast and lightweight
Mobile and desktop friendly
Free to use without registration

What Is Base64 Encoding?

Base64 is a method used to encode binary or text data into a string of ASCII characters. It is commonly used when transferring data over systems that only support text-based formats.

Base64 encoding is widely used in email systems, APIs, data URLs, and web development to safely transmit information.

Common Uses of Base64

Embedding images in HTML or CSS
Data transmission in APIs
Email attachments encoding
Storing binary data in text format