FAQ

Common questions about Base64 Encode.

Does this Base64 encoder support Japanese characters?

Yes. The tool always encodes your input as UTF-8 before applying Base64, so Japanese kana, kanji, emoji, and any Unicode characters are converted accurately.

Is my text sent to a server?

No. Encoding happens entirely in your browser. Your input never leaves your device, ensuring full privacy.

What is the difference between UTF-8 and standard ASCII Base64 encoding?

Standard ASCII encoding only handles 7-bit characters. When you input Japanese or other Unicode text, UTF-8 encoding first converts characters into bytes, preserving all data correctly before Base64 conversion.

Can I use this output in JSON or URLs?

Base64 output may contain '+', '/', and '='. For URLs, you'll need to URL-encode those characters. For JSON, Base64 is safe as a string value.