Base64 Encoder

Encode text or data to Base64 format instantly. Free online Base64 encoder that works entirely in your browser.

Everything runs in your browser. Your input is not sent to a server.

How to use the Base64 Encoder

Enter or paste the text to encode.
Press Encode.
Copy the Base64 output.
Clear the form for a new string.

How it works

Base64 represents binary data using 64 ASCII characters. The encoder converts your text to a Base64 string safe for embedding in JSON, HTML data URLs or plain-text protocols.

Common in tokens, simple data transfer and debugging.

Examples

“Hi” → SGk=
Empty string → empty Base64 output.
Unicode text is encoded according to the page’s UTF-8 handling.

Base64 Encoder FAQ

Is Base64 encryption?

No. It is encoding only—anyone can decode it. Do not use it to hide secrets.

Can I encode files?

This page focuses on text encoding. For images, use the Image to Base64 tool.

Is the Base64 Encoder free?

Yes.