JWT Decoder

Decode JWT Token to view Header and Payload

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About this tool

JWT Decoder is a free online tool for inspecting JSON Web Tokens. Paste a token to decode its header, payload and signature information, check the expiry time and understand what each field means. Everything is decoded locally in your browser and never uploaded to a server, so it is safe for debugging real tokens.

Frequently asked questions

Is my token uploaded to a server?

No. Decoding happens entirely locally in your browser and the token is never uploaded.

What does the decoder show?

The header, payload and signature information of the token, plus its expiry time and an explanation of the fields.

Is this JWT decoder free?

Yes, completely free with no sign-up. Just paste a token and view the decoded content.

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