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Base64 Encode and Decode

Encode or decode UTF-8 text to and from Base64 strings directly in your browser with instant local processing.

This tool runs in your browser.

Your text is processed locally in this browser.

How to use

  1. 01Paste plain text or a Base64 string into the input editor.
  2. 02Click 'Encode' to generate Base64 or 'Decode' to restore the original text.
  3. 03Copy the converted output directly to your clipboard.

FAQ

Is Base64 considered a secure encryption method?

No. Base64 is an encoding scheme used to represent binary or text data in an ASCII format for safe transmission. It does not provide cryptographic secrecy.

Does this tool correctly support international characters and Unicode?

Yes. It uses standard UTF-8 byte serialization, ensuring full support for non-Latin alphabets, CJK characters, and emojis without encoding errors.

Is my text transmitted over the internet when converting?

No. All conversions happen entirely client-side using JavaScript in your local browser window without network calls.