🔒 100% Client-Side • Never Transmitted • RFC 7519
AI JWT Debugger & Claims Auditor
Decode JSON Web Tokens instantly in your browser, audit expiration windows, detect "alg": "none" vulnerabilities, and generate verification code for Node.js, Python, and Go.
🔑 Encoded JWT Token
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Token Parts: Header (Red) Payload (Purple) Signature (Cyan)
🛡️ Security & Vulnerability Analysis
Paste or select a token above to analyze signature, claims integrity, and algorithmic safety.
Header: Algorithm & Type
HS256
Lifecycle & Expiry
Awaiting Token
Issued: -
Expires: -
Remaining: -