JWT Decoder
Decode and inspect JSON Web Tokens. View header and payload information.
JWT Token
Paste your JWT token here
Understanding JWT Structure
A JWT consists of three parts separated by dots:
- Header: Contains token type and signing algorithm
- Payload: Contains claims (user data, expiration, etc.)
- Signature: Used to verify the token hasn't been tampered with
Note: This tool only decodes the header and payload. It does not verify the signature.