JWT Online Debugger & Decoder

Decode JSON Web Token headers and payloads with automatic validity and expiration countdown

100% ब्राउज़र स्थानीय गणना: शून्य क्लाउड अपलोड - ऑफ़लाइन सक्षम

JWT 除錯驗證 100% ब्राउज़र स्थानीय गणना

JWT टोकन दर्ज करें (तीन बिंदुओं से विभाजित)

Header.Payload.Signature

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkFsZXgiLCJpYXQiOjE1MTYyMzkwMjJ9.XbPfbIHMI6arZ3Y922BhjWgQzWXcXNrz0ogtVhfEd2o

हेडर (Header)HS256

{
  "alg": "HS256",
  "typ": "JWT"
}

पेलोड (Payload)

जारी करने का समय (iat): 1/18/2018, 1:30:22 AM

{
  "sub": "1234567890",
  "name": "Alex",
  "iat": 1516239022
}

हस्ताक्षर (Signature)

HMAC-SHA256 (base64url): XbPfbIHMI6arZ3Y922BhjWgQzWXcXNrz0ogtVhfEd2o

Offline client-side JWT parser. Decode header, payload claims, and check expiration (exp) and issued-at (iat) timestamps securely.

अक्सर पूछे जाने वाले प्रश्न

Is it safe to paste JWT tokens into this online tool?

Completely safe. Processing happens entirely in your local browser window without transmitting tokens to any server.

How does the tool check token expiration?

It parses exp and nbf timestamp claims and compares them to your current UTC system clock.