Base64 Encoder & Decoder

Encode or decode Base64 instantly with UTF-8 support and clear output.

No data stored Instant results Mobile-friendly

Calculator

Status

Idle

Mode

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Input Length

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Output Length

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How it works

Paste text or Base64 into the input box and choose Encode or Decode. The tool converts the data locally in your browser. Results are for informational purposes only.

FAQ

What is Base64 used for?

Base64 encodes binary or text data into ASCII characters so it can be safely transmitted in text-based systems.

Why does Base64 have '=' padding?

The '=' character is padding used to make the encoded output length a multiple of 4.

Does this Base64 tool support UTF-8?

Yes. It supports UTF-8 input and output for international characters.

Is this tool free to use?

Yes. This Base64 encoder/decoder is free and does not require an account.