JWT Decoder

Decode JWT headers, claims and timestamps locally. Signatures are not verified.

✓ Runs in your browser

⚠ Decoded only — signature NOT verified. Never trust a token just because it decodes.

JWT token

Signature: — not verified

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Private by default

Tool input stays in this browser. Nothing is uploaded unless the tool clearly says otherwise.

Built for quick, repeatable developer tasks with a privacy-first browser workflow.

Decoded only — signature NOT verified. Never trust a token just because it decodes.

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