About this JWT decoder
Decode claims without sending tokens to us
JSON Web Tokens encode a header and payload as Base64url JSON. Inspecting those segments locally is a normal debugging step when expiry, audience, or issuer values look wrong in your application logs.
This workspace is built so decoding happens in the browser for typical inspection workflows, which reduces unnecessary round-trips compared with ad-hoc pastebins.
Decoding is not verification
Anyone can craft a JWT-shaped string. Signature verification must use your authority's keys and trusted libraries on the server or in a hardened environment. Never trust a decoded payload alone for authorization decisions.
If a token fails verification in your API but looks fine here, focus on clock skew, wrong signing keys, or mixed environments between staging and production.
Operational hygiene
Rotate refresh tokens and access tokens according to your identity provider guidance. Short-lived access tokens limit the window if a string leaks from a screenshot or log file.
When sharing bug reports, prefer synthetic tokens or redacted claims so real user sessions are not exposed.