Token Inspection Utility
JWT Decoder
Decode JSON Web Tokens to inspect headers and claims — commonly used in authentication systems and APIs.
JWTs are commonly used as bearer tokens in HTTP Authorization headers and API authentication flows.
This tool performs live decoding only and does not verify, validate, store, or log tokens.
Free • No account • Decode only • No verification
Decoded token
Learn more about JWTs
Understand JWT structure, claims, expiry, and security considerations.