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JWT Decoder

Paste a JSON Web Token to decode its Header, Payload, and inspect claims.

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<iframe src="https://tools.infiniolabs.com/dev/jwt-decoder?embed=1" width="100%" height="600" frameborder="0" allowtransparency="true" loading="lazy" title="jwt-decoder"></iframe>
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Encoded JWT

🔒 Everything runs in your browser — the token never leaves this page.

Paste a JWT above (or click Sample) to see the decoded header, payload, claims, security lint, and to verify the signature — 100% in your browser.
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