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Base64 Encoder & Decoder

Browser-based Base64 encoder and decoder with UTF-8 support for text, code snippets, and test data.

Base64 converts binary data into printable characters for transport in text-based systems. Encode UTF-8 text or decode a Base64 string without sending it to an external service.

Base64 is an encoding—not encryption. Anyone with the value can decode it, so do not use it to protect passwords or secrets.

Frequently asked questions

Is Base64 secure encryption?

No. It is reversible encoding and provides no confidentiality.

Does the tool support emoji and non-English text?

Yes. It converts text through UTF-8 before encoding and after decoding.

Is my text sent to a server?

No. Conversion runs in the browser.