Base64 Encoder / Decoder

Free online Base64 encoder and decoder. Encode text to Base64 or decode Base64 strings back to plain text. Supports Unicode and UTF-8.

Tools run in your browser. Shared links may include your input; check the URL before sharing.

How to use

  1. Choose encode or decode.
  2. Paste text and check the result before copying.

This example illustrates one supported operation. Choose the matching mode and settings above; generated values and formatting may vary.

Example input or settings

Hello, 世界

Example result

SGVsbG8sIOS4lueVjA==

Does Base64 protect secrets?

No. Anyone can reverse the encoding. Use encryption for confidentiality.