Base64URL Encoder
Encode and decode URL-safe Base64 (the variant JWTs use) with Unicode support.
Result appears here…
How to use
Type text to encode, or paste Base64URL to decode. Everything runs in your browser.
Frequently asked questions
How is Base64URL different?
It swaps +/ for -_ and drops = padding so the output is safe in URLs and filenames.
Does it handle Unicode?
Yes — text is UTF-8 encoded first, so emoji and non-Latin scripts work.
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