JWT Integrity Analyzer
Decode JWT tokens and flag risky configs: alg=none, missing iss/aud, excessive expiry, and future nbf. Free JWT security analyzer by Graph Tools.
Use this free JWT security analyzer to decode and inspect any JSON Web Token for security risks. The tool flags dangerous configurations including the alg=none vulnerability, missing required claims (iss, aud, sub), excessively long expiry windows, and future nbf values. Unlike a basic JWT decoder, this tool focuses on security posture — providing actionable findings for each issue detected.