JWT Debugger
Secure, client-side JSON Web Token inspector & validator.
Invalid Format
Encoded Token
Token Meta
AlgorithmUnknown
Issued AtN/A
Expires AtN/A
Header
// No data available
Payload
// No data available
Signature
HMACSHA256(
base64UrlEncode(header) + "." +
base64UrlEncode(payload),
) // Signature verified
base64UrlEncode(header) + "." +
base64UrlEncode(payload),
your-256-bit-secret
) // Signature verified
Header
Algorithm & Token Type
Payload
Data & Claims
Signature
Verification Key