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JWT Decoder
Decode headers, payload claims, and dates from JSON Web Tokens locally in your browser.
Encoded JWT Token
Decoded Header
Decoded Payload
Security NoticeJWT decoding does not verify the token's signature. This tool parses the header and payload data locally in your browser. Do not paste sensitive production keys or credentials into untrusted websites.
What is a JWT (JSON Web Token)?
JSON Web Tokens are an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. JWTs consist of three parts separated by dots (`.`): a Header, a Payload, and a Signature.
Standard JWT Claims Explanation
iss (Issuer)Identifies the principal that issued the JWT (e.g. `https://fawru.com`).
sub (Subject)Identifies the subject of the JWT (e.g. the User ID `1234567890`).
aud (Audience)Identifies the recipients that the JWT is intended for.
exp (Expiration Time)Identifies the expiration time on or after which the JWT must not be accepted for processing.