JWT Decoder

Decode JWT headers and payloads instantly to inspect claims, expiry and algorithm — no signature verification.

Developer100% client-sideFree · no sign-up

jwt-decoder — tool

JWT (paste the full token)

Payload

Your input is processed locally in the browser. Nothing is uploaded.

runs 100% client-side · your data never leaves the browser

how_to — jwt-decoder

How to use the jwt decoder

1Paste or type your content into the input box — or click Sample to try it with realistic data.
2The result updates automatically as you type, then copy or download it when you are happy.

No. Decoding is pure Base64URL + JSON parsing; verification requires the secret or public key on a trusted system.

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