JWT Decoder
Parse JWT tokens to inspect header and payload.
How to Use
- Paste your JWT token into the input area.
- Click 'Decode' to view the header and payload.
- If the token contains an expiration (exp) claim, its validity status will be shown automatically.
FAQ
What is a JWT?
JWT (JSON Web Token) is a token format for securely transmitting information between systems. It consists of three parts: header, payload, and signature.
Can this tool verify signatures?
This tool is designed for inspecting token headers and payloads. Signature verification is not supported.
How is expiration status determined?
The exp (expiration time) value in the payload is compared against the current time to show Valid, Expired, or No exp.