Smart JWT Analyzer

Debug, verify, and analyze your JSON Web Tokens securely.

Simulated

JWT Analyzer

Mode: Simulated

This lab runs fully in simulation mode. No backend required.

Quick Load Sample Token

Paste Token (Bearer string)

1. Get Your Token

Copy the JWT from your auth response, localStorage, or browser DevTools (Network tab).

2. Paste & Analyze

Paste the token above. The analyzer decodes the header and payload instantly.

3. Debug Issues

Check expiry, issuer, audience, and roles to troubleshoot auth failures.