100% Client-side

Base64 Encode / Decode

Convert text to Base64 and back, instantly and privately in your browser.

FAQ

Is my data uploaded?

No. Encoding and decoding run entirely in your browser. Nothing is sent anywhere.

Does it handle Unicode?

Yes. UTF-8 text with emojis and accents encodes and decodes correctly.

Is it free?

Yes, free with no limits and no signup.