Base64 Encode/Decode

Encode text to Base64 or decode it back — entirely in your browser.

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Frequently asked questions

What is Base64 encoding used for?

Base64 turns binary or text data into a safe ASCII string — commonly used to embed data in JSON payloads, URLs, email attachments, or data: URIs in HTML/CSS.

Does this support Unicode text?

Yes. Text is UTF-8 encoded before Base64 encoding, so emoji and non-Latin characters round-trip correctly when you encode then decode.