Is this base64 free?
Yes. Base64 Encoder & Decoder is free to use and runs in your browser.
Encode / Decode
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to plain text, with Unicode-safe browser-only processing.
Private by design
Input is processed locally in your browser.
Loading Base64...
FAQ
Base64 questions
Is my data uploaded to a server?
No. The tool logic runs locally in your browser, so pasted text and files are not sent to Syntaxshel.
What is this page best for?
Use it when you need a fast base64 encoder decoder without installing software or opening a terminal.