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JWT Decoder

Decode JWT header and payload locally, inspect claims, expiry times and raw Base64URL segments.

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JWTTokenJSON

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How to use

How to use JWT Decoder

1 Paste the JWT string into the input box.

2 Review the decoded header, payload and signature segment.

3 Copy the parsed JSON or inspect the key timing claims.

Common uses

JWT Decoder works well for these tasks

Inspect test tokens during development

Check exp / iat / iss / sub claims quickly

Explain what a copied JWT contains before debugging auth flows

FAQ

Frequently asked questions

What is JWT Decoder useful for?

Inspect test tokens during development

How do I start using JWT Decoder?

Paste the JWT string into the input box. Review the decoded header, payload and signature segment. Copy the parsed JSON or inspect the key timing claims.

What should I do after this result?

Most people continue with JSON Formatter, Regex Tester, HTTP Status Code Lookup next.