Security & Tokens
JWT Header & Claims Inspector
Inspect compact JWS headers and claims locally in memory with UTC and relative exp/nbf/iat timestamps, JWE distinction, and strict unverified signature labeling.
Local In-Memory Inspector Only · Signatures Are NOT Verified
Tokens stay strictly in React memory during your visit — never written to URLs, local/session storage, console logs, analytics, or network requests. Never rely on decoded claims without verifying the cryptographic signature on your server.