FreeToolbelt

Base64 Encoder/Decoder

Encode any text to Base64 or decode a Base64 string back to readable text, instantly and entirely in your browser — nothing is uploaded to a server. Fully Unicode-safe: emoji, Cyrillic, CJK, and any other UTF-8 text encode and decode correctly.

Text input
Base64 output

Frequently asked questions

No. Encoding and decoding run entirely in your browser using JavaScript. Your text never leaves your device.

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