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Base64 Encoder and Decoder

Switch between plain text and Base64 without a terminal. Encoding and decoding run locally, which is useful when a sample string should not be pasted into a remote decoder.

How to use it

  1. Paste text or a Base64 string.
  2. Choose encode or decode.
  3. Copy the output.

Useful for

  • Decode a data URL payload
  • Encode a short test string
  • Check a Basic authorization value

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Questions about Base64 Encoder / Decoder

Can I convert images to Base64? +

Yes. Upload an image and get a ready-to-use data URI or raw Base64 string.