Decode JSON Web Tokens instantly in your browser. View header, payload, and check expiration.
Paste a JWT token in header.payload.signature format.
Yes — all decoding happens in your browser. Your token is never sent to any server.
Header (algorithm), Payload (claims), and Signature (verification).
Yes, our jwt tool is completely free. No registration, no limits.
Yes, all tools including jwt are fully responsive. Works on all devices.