🔐 JWT Decoder & Encoder
Decode JWT tokens to view their contents or encode custom payloads into new tokens. Perfect for developers working with authentication and API security.
📖 How to Use
1
Paste your JWT token in the input field below
2
Click "Decode JWT" to view the token contents
3
Review the decoded header, payload, and signature
4
Check token validity and expiration status
💡 Examples
Decode Example
Paste this sample JWT to see how decoding works:
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5cEncode Example
Use this sample payload to create a new JWT:
{
"user_id": 12345,
"username": "john_doe",
"role": "user",
"iat": 1516239022
}