Decode and inspect any JWT — privately
Paste a JSON Web Token to decode the header and payload, validate the signature with your secret or public key, and get a plain-English security analysis. Tokens are processed over HTTPS by the TechClick Worker and are never stored or logged.
No tokens stored. No analytics on this page.
Why use this?
Most JWT debuggers just decode. We also flag alg=none, missing exp, weak secrets, kid-confusion attacks, and clock-skew issues — in plain English.
Algorithms supported
HS256/384/512, RS256/384/512, PS256/384/512, ES256/384/512, none
Privacy
No token storage. No third-party analytics on this tool. Decode and AI verdict requests run through TechClick's Cloudflare Worker over HTTPS.