JWT Decoder
Decode and inspect JSON Web Tokens (JWT). Paste your JWT in the input box or upload a file, and see the decoded header, payload, and signature instantly.
JWT Input
About JWT Decoding
JSON Web Tokens (JWT) are an open standard (RFC 7519) for securely transmitting information between parties as a JSON object. A JWT consists of three parts:
- Header: Contains metadata about the token (like the signing algorithm)
- Payload: Contains the actual data (claims)
- Signature: Verifies the token hasn't been tampered with
Common Use Cases
- • Authentication and authorization
- • Information exchange
- • API access tokens
- • Single sign-on (SSO)