Decode, inspect, and analyze JWT headers, claims, expiration dates, and signatures securely in your browser.
{
"alg": "HS256",
"typ": "JWT"
}{
"sub": "1234567890",
"name": "Jane Doe",
"email": "jane@example.com",
"role": "admin",
"iat": 1516239022,
"exp": 1907897022
}40r9U5E3qUfvzW61m2QJ7b9p5T8m4H7r2E8n0L1X9Z8
Popular JWT debuggers transmit tokens over the network. Our JWT Debugger runs 100% in your browser memory, keeping your secret credentials, session keys, and customer tokens completely confidential.
100% in-browser client execution. No server logs, no database storage, and no network transmission of editor content.
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