JWT Inspector

Decode JSON Web Tokens instantly. Verify algorithms, claims, and expiration securely in your browser.

Encoded Token

Awaiting Token

Paste your JWT string here to decode...

Header (Algorithm & Type)

Payload (Data & Claims)

Zero-Trust Security Architecture

Layerbit’s JWT Inspector is built for security engineers and backend developers. It decodes base64url encoded tokens without transmitting the payload over the network. It is entirely client-side, ensuring your sensitive authentication strings never leave your machine.

Real-Time Parsing: Instantly splits and color-codes the Header, Payload, and Signature.
Expiration Verification: Automatically calculates Unix timestamps from the exp and iat claims to visually alert you if a token is expired.
Secure Environment: No databases, no logs, no API calls. Your JWT is decoded locally in the DOM.