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Base64 Encoder / Decoder

Encode any text to Base64 or decode Base64 back to readable text — with full Unicode support.

Private files stay in your browser. AI prompts you send leave your device.

How to use Base64 Encoder / Decoder

  1. Paste your text (or Base64 string) in the input box.
  2. Click Encode to Base64 or Decode from Base64.
  3. Copy the result with one click.

Frequently asked questions

Is Base64 Encoder / Decoder free to use?

Yes. Base64 Encoder / Decoder is completely free, with no sign-up, no daily limit, and no watermark on what you download.

Is my data uploaded to a server?

No. Base64 Encoder / Decoder runs entirely in your browser using JavaScript — nothing you type or upload ever leaves your device.

Does it support non-English text like Bengali?

Yes. The tool encodes in UTF-8 first, so Bengali, Arabic, emoji and every other Unicode script round-trips perfectly.

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