Base64 Encode / Decode

Convert text to Base64 and back. Handy for data URIs, tokens, config files and debugging. Fully Unicode-safe so emoji and non-Latin scripts survive the round trip.

Input

Output

Your data is processed locally in your browser and is never uploaded to our server.

How to use base64 encode / decode

Enter your text
Paste plain text to encode, or a Base64 string to decode.
Pick a direction
Click Encode to turn text into Base64, or Decode to reverse it.
Copy the output
Grab the result from the output box with the copy button.

Features

Unicode safe

Uses proper UTF-8 handling so emoji and non-English characters encode and decode correctly.

Two-way

Encode and decode in the same tool without switching pages.

Local only

Runs in your browser; nothing is transmitted or stored.

Frequently asked questions

Does Base64 encrypt my data?

No. Base64 is an encoding, not encryption. Anyone can decode it — never use it to protect secrets.

Can it handle emoji and other languages?

Yes. The tool encodes UTF-8 correctly, so multi-byte characters survive encoding and decoding.

Why did decoding fail?

The input probably isn't valid Base64 — check for stray spaces, line breaks or missing padding characters.