base64 encode & decode
convert text to base64 and back. unicode is handled correctly.
runs on your device · free · no sign-up
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frequently asked questions
does it support unicode and emoji?
yes. text is encoded as utf-8 before base64 so accents and emoji round-trip correctly.
what is url-safe base64?
it swaps + and / for - and _ and removes padding, which is used in jwts and urls. decoding accepts both forms.
is my data uploaded?
no. encoding and decoding run in your browser.