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Free tool
JWT Debugger
Decode JSON Web Tokens (JWT) to read the header and payload. Signatures are not verified.
// Header data
// Payload data
// Signature
*Signature verification requires the secret key, which is not verified here for security.
How to use this tool
Follow these steps to get the most out of the JWT Debugger.
Paste your JWT string (header.payload.signature).
The tool implicitly decodes the Header and Payload.
Inspect the claims (exp, iat, sub, etc.).
Verify the signature status if a secret is provided.
The guide
Inspect Your Tokens
Paste a JWT (JSON Web Token) here to see its decoded contents. Note: We only decode the token parts (base64 decode), we do not verify the signature secret client-side for security reasons.
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