What is Base64?
Base64 represents binary data using 64 printable characters. It is used to embed data in JSON, URLs, emails and HTTP headers where raw bytes are not allowed.
Base64 is encoding, not encryption: anyone can decode it. This tool handles UTF-8 correctly, so umlauts and emoji survive the round trip.
How to use the Base64 Encoder / Decoder
- 1Choose Encode or Decode.
- 2Paste your text or Base64 string.
- 3Copy the result.
Frequently asked questions
Is Base64 secure?
No. It only changes the representation and offers no protection.
Is my text uploaded?
No. It is converted in your browser.