- JWT (JSON Web Token) is an open standard (RFC 7519) that defines a compact, self-contained way for securely transmitting information between parties as a JSON object.
- JWT consists of three parts separated by dots (.): Header, Payload, and Signature.
- Header typically contains the type of token (JWT) and the signing algorithm (such as HMAC SHA256 or RSA).
- Payload contains claims, which are statements about an entity (typically, the user) and additional data.
- Supported Formats：
- Pure JWT format：
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
- Bearer format：
Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
- Tool automatically detects and removes "Bearer " prefix (case insensitive)
- Common Standard Claims：
- iss (issuer)：Issuer
- exp (expiration time)：Expiration Time
- sub (subject)：Subject
- aud (audience)：Audience
- iat (issued at)：Issued At
- nbf (not before)：Not Before
- This tool only parses JWT and does not verify signature validity.