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Braith.

JWT decoder

Read a JWT header, payload and time claims without sending the token away.

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

Result

Add your input, then select Decode JWT.

How to use it

Paste a compact three-part JWT. Inspect its claims and whether its exp or nbf time has passed.

What to keep in mind

Decoding does not verify the signature, issuer, audience or authenticity. Do not use this output to authorise a user.

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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