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Braith.

Base64URL encoder and decoder

Encode and decode the URL-safe Base64 alphabet used by tokens.

Runs in your browser. Your input is not uploaded or saved.

Result

Add your input, then select Convert Base64URL.

How to use it

Convert UTF-8 text with the URL-safe - and _ alphabet and omitted padding.

What to keep in mind

This does not sign or validate a token. Decoding requires UTF-8 text.

Up to 2 MB per input, with smaller limits for complex operations. Clear removes the current input and result.

Catch problems while customers use your app.

Braith reviews sampled app activity for likely failures and friction. Keep your error tracker for exceptions and stack traces.

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