JWT Decoder
Decode JWT tokens and inspect header, payload, and expiry.
Runs entirely in your browser
Header
Payload
Decode JWT tokens and inspect header, payload, and expiry.
Decode and inspect JWT tokens instantly.
Paste a JWT token into the input area.
Header and payload are decoded and displayed as JSON.
See if the token is expired, valid, or has no expiry.
Token is decoded automatically as you paste — no button needed.
Your tokens never leave your browser. No server-side processing.
Instantly see whether your token is expired, valid, or has no exp claim.
Just open the page and paste your token. No sign-ups or logins.