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Pedro Ivotools

Base64 Encoder and Decoder

Encode text to Base64 or decode Base64 back to text, with full UTF-8 support. Runs entirely in your browser.

Local calculation
The result is calculated in your browser.
Private by default
Nothing you enter leaves your browser.
Mode
Base64

How it works

Text is first converted to UTF-8 bytes, so accents and emoji survive the round trip, and the bytes are then written in the 64-character Base64 alphabet.

Decoding reverses the process and reports an error if the input is not valid Base64.

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