Encoding utility
Base64 Encode Online
Encode text to Base64 in the browser with UTF-8 support and one-click copy.
Browser-onlyNo uploadCopy-ready
Base64 output
UTF-8 Base64 encoding
The encoder turns text into bytes before Base64 encoding, which keeps multilingual text safer than ASCII-only helpers.
Is the encoder browser-only?
Yes. Text is encoded in the current browser session without a server request.
Can I encode JSON?
Yes. Paste JSON as text, encode it, then copy the resulting Base64 string.