JWT Decoder

JSON Web Tokens (JWT) are an open standard (RFC 7519) for securely transmitting information between parties as a JSON object.

Structure: JWT consists of three parts separated by dots (.)

• Header: Token type and signing algorithm
• Payload: Claims (data about the user/token)
• Signature: Ensures the token hasn't been tampered with

Common Claims:

• iss (issuer), sub (subject), aud (audience)
• exp (expiration time), iat (issued at), nbf (not before)