Parse JWT headers, claims, expiration dates, and payload JSON locally in your browser. Highlights expiration status and security reminders.
{
// Header data will appear here
}{
// Payload claims will appear here
}Inspect, parse, and verify JSON Web Tokens (JWT) client-side. Decodes the Header, Payload, and Signature components with live expiration countdowns, Unix epoch date translations, and cryptographic algorithm audits.
Distinguish between JWT Header (red), Payload (purple), and Signature (blue) matching standard RFC 7519 specifications.
Calculates remaining validity down to the second with color-coded status badges (Active, Expired, Not Yet Valid).
Translates cryptic claims like exp, iat, nbf, iss, sub, and aud into human-readable local timestamps and explanations.
Verify claims, scope grants, user roles, and audience targets received from Auth0, Okta, Keycloak, or Cognito.
Check if auth tokens are prematurely expiring or failing due to server-side clock drift across clusters.
Verify JWT payload claims without exposing sensitive user credentials to cloud logging endpoints.
Encode and decode standard and URL-safe Base64 strings with UTF-8 support.
Compute SHA-1, SHA-256, SHA-384, SHA-512, and MD5 cryptographic hashes.
Convert Unix epoch timestamps to human-readable dates and UTC times.