Base64 Converter

Encode and decode Base64 text, with correct UTF-8 handling for non-ASCII input.

How to use Base64 Converter

1. Choose encode or decode.
2. Type or paste your text and the result updates immediately.
3. Use Swap to move the result back into the input and verify the round trip.

Frequently asked questions

Does it handle non-ASCII text?

Yes. Encoding uses UTF-8, so Korean text and emoji survive the round trip unchanged.