JWT Decoder
Paste a JWT to see its algorithm, claims, and whether it is still valid — entirely offline, no signature verification against a live server.
Three steps, no setup
Paste the token
The three dot-separated segments are split and decoded automatically.
Inspect the claims
iat, exp and nbf are converted into readable dates alongside the raw values.
Check expiry at a glance
A clear status badge shows whether the token has already expired.
Frequently asked questions
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