Base64 Encoder / Decoder

Encode text to Base64 or decode it back, instantly and in your browser. Handles Unicode (including emoji) correctly and never uploads your data — a free Base64 encoder and decoder.

How to use

1. Paste your text or Base64 string into the box.
2. Pick encode or decode — the result appears instantly.
3. Copy the result with one click.

FAQ

Q. Does it handle Unicode and emoji?

A. Yes. Text is converted through UTF-8, so Korean, Japanese, accented characters and emoji all round-trip correctly.

Q. Is Base64 encryption?

A. No. Base64 is an encoding, not encryption — anyone can decode it. Never use it to protect passwords or secrets.

Q. Is my data uploaded?

A. No. Encoding and decoding happen entirely in your browser, so tokens and payloads stay private.