Encoding

Base64 Encoder

Encode UTF-8 text as standard RFC 4648 Base64 locally.

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Base64 output

Choose “Encode Base64” to see the result here.

Processed in your browser. Inputs stay in this page’s memory and are not uploaded or saved.

Text is encoded as UTF-8 bytes. Decoding rejects bytes that are not valid UTF-8.

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What does this tool do?

Encode UTF-8 text as standard RFC 4648 Base64 locally. Input: UTF-8 text input. Output: Base64 output (Base64).

How to use it

Enter utf-8 text input, then choose “Encode Base64”. Review the result and use Copy to copy the displayed text. Clear removes all fields and the result.