Decode and inspect JSON Web Tokens instantly. See the header, payload, and signature — all parsed and readable. Your tokens never leave your browser.
Paste any JWT and see the header, payload, and signature decoded and formatted immediately — no button press needed.
The exp, iat, and nbf claims are automatically parsed into human-readable dates with live expiry status.
Your tokens never leave your browser. No server, no logs, no third parties. Safe to use with real production tokens.
Header, payload, and signature are color coded — blue, purple, and green — matching the industry standard used by jwt.io.
Automatically reads the alg field and tells you exactly which signing algorithm was used.
Standard JWT claims like sub, iss, and aud are explained in plain English with their current values.