Authentication & Security
Client-Side JWT Decoder & Inspector
Developers frequently need to triage authentication bugs: check if an access token has expired, verify user scopes, or confirm tenant IDs. But pasting bearer tokens into typical web decoders risks data leaks. Our JWT Decoder parses everything exclusively in your browser.
Inspect Your Token Safely
Zero network transmission. Instant formatting of headers, payload claims, and human expiration timestamps.
🚀 Open Interactive JWT DecoderStandard JWT Claims Reference
iss(Issuer): The entity that issued the token (e.g.https://auth0.com/).sub(Subject): The subject / principal identity (often the User UUID).aud(Audience): The recipient target for which the JWT is intended.exp(Expiration Time): Unix epoch timestamp identifying when the token expires.nbf(Not Before): Unix timestamp before which the token must not be accepted.iat(Issued At): Unix timestamp marking when the token was created.