Encoded Token
eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMyIsIm5hbWUiOiJBbGljZSBTbWl0aCIsImVtYWlsIjoiYWxpY2VAZXhhbXBsZS5jb20iLCJlbWFpbF92ZXJpZmllZCI6dHJ1ZSwicm9sZXMiOlsiYWRtaW4iLCJ1c2VyIl0sImlzcyI6Imh0dHBzOi8vYXV0aC5leGFtcGxlLmNvbSIsImF1ZCI6ImFwaS5leGFtcGxlLmNvbSIsImlhdCI6MTcwMDAwMDAwMCwiZXhwIjo5OTk5OTk5OTk5fQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
Header
Payload
Signature
client-side onlySignature
SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
Signatures are verified server-side with the secret or public key. This tool decodes the claims only.
Decoded Header
{
"alg": "RS256",
"typ": "JWT"
}
Decoded Payload
{
"sub": "user_123",
"name": "Alice Smith",
"email_verified": true,
"roles": [
"admin",
"user"
],
"iss": "https://auth.example.com",
"aud": "api.example.com",
"iat": 1700000000,
"exp": 9999999999
}