Base64 Encode / Decode Text Online
Encode text to Base64 or decode Base64 to text online — full UTF-8/Unicode support, instant, 100% in your browser. No upload, no limits.
Input · text0 chars
Output · text0 chars
🔒 100% private: this tool runs entirely in your browser. Your data is never uploaded, stored or logged anywhere.
How to base64 text
- Paste text, get Base64 instantly (full UTF-8/emoji support).
- Switch to Decode and paste Base64 to get text back.
- Copy the result.
FAQ
Does it support Vietnamese and emoji?
Yes — encoding is proper UTF-8, not the latin1 many simple tools get wrong.
Is Base64 encryption?
No — it is an encoding, trivially reversible. Never use it to hide secrets.
Are line breaks in the Base64 input OK?
Yes — whitespace is ignored when decoding.