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Developer Tool

Base64 Encoder

Switch between encode and decode modes, process text locally, and copy results in one click.

Privacy-first: this tool runs in your browser without paid APIs or third-party calculation calls.

Base64 workspace

Encode and decode Base64

InputOutput

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How to use

Choose Encode or Decode mode.
Paste your text into the input area.
Run the action and copy the output.

FAQs

Does this support Unicode?

Yes. Encoding uses UTF-8 safe conversion before Base64.

Is data uploaded?

No. All processing happens in your browser.

What if decode fails?

You will see an error when the input is not valid Base64.

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