🔑 JWT Decoder

Free JWT Decoder

Instantly decode and inspect JSON Web Tokens (JWTs). View the header algorithm, all payload claims, and check token expiration status. Color-coded token visualization shows header, payload, and signature sections. Recognizes standard claims like iss, sub, aud, exp, nbf, iat, and jti. Perfect for debugging authentication and API integrations. All processing happens in your browser — your tokens are never sent to any server.