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Base64 Encoder / Decoder

Encode or decode Base64, URL encoding, and HTML entities instantly. Also convert files and images to Base64 strings — 100% client-side, nothing leaves your browser.

Input
Output
📁 Convert a file or image to Base64

How to use

  1. Select the encoding type: Base64, URL Encoding, or HTML Entities.
  2. Paste your text into the Input panel, then click Encode or Decode.
  3. Use the ⇄ Swap button to move the output back to the input for chaining operations.
  4. To convert a file or image to Base64, click Choose File — the result includes the data URI prefix for use in HTML/CSS.

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