Inspect and decode JSON Web Tokens. View JOSE headers, payload claims, and token expiration status.
Client-Side Only: HelpGate parses JWT claims in browser memory. Tokens are never transmitted to any server. Note that client-side parsing decodes payload claims but does not verify secret key cryptographic signatures.
Header: Algorithm & Token Type
// Decoded header will appear here
Payload: Data Claims
// Decoded payload claims will appear here
HelpGate Privacy & Security Commitment
This tool operates strictly inside your browser session using standard Web APIs. Your input, confidential files, calculations, or tokens are never transmitted to or stored on HelpGate servers or third-party cloud infrastructure. You can safely disconnect your internet and continue using this tool once the page has loaded.