What does this JWT decoder do?
It splits a JWT into parts and decodes the Base64URL header and payload into readable JSON.
Decode JWT header and payload JSON while debugging auth flows, API tests, and mock tokens.
Paste a JWT to decode its header and payload.
Header and payload JSON appear after a short delay. Signature is not verified.
{
"header": {
"alg": "HS256",
"typ": "JWT"
},
"payload": {
"sub": "1234567890",
"name": "John Doe",
"iat": 1516239022
},
"signature": "present"
}It splits a JWT into parts and decodes the Base64URL header and payload into readable JSON.
No. This tool decodes token contents for inspection only. Signature verification requires the correct secret or public key.
It helps inspect claims like subject, issuer, role, issued-at time, and expiry while debugging authenticated mock requests.
Encode and decode Base64 strings for tokens, payloads, headers, and API test values.
Convert Unix timestamps into ISO dates, local dates, seconds, and milliseconds for API, log, and test data workflows.
Encode and decode URL components for query strings, redirects, API debugging, and copied request values.