Base64 encoder / decoder
Encode and decode text to and from Base64 (UTF-8), right in your browser.
🔒 100% client-side — no data sent
Encode and decode text to and from Base64 (UTF-8) right in your browser, with no install and no data sent anywhere. This free Base64 encoder/decoder is perfect for converting strings, tokens or binary data privately, since all processing stays 100% client-side.
FAQ
What is Base64 encoding?
Base64 is a scheme that converts binary data into ASCII text using 64 characters. It is used to carry data through text-only contexts such as email or data URLs.
Is Base64 encoding a form of encryption?
No, Base64 is not encryption: it is a simple, keyless and reversible encoding. Anyone can decode it, so it does not protect sensitive information.
Is my data sent to a server?
No. Encoding and decoding happen entirely in your browser, and no data ever leaves your device.
Does Base64 handle accented characters and emojis?
Yes, this tool encodes text as UTF-8, which supports accents, special characters and emojis without corruption.