JWT Sniffer is a free Chrome add-on developed by silveremarie112. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This handy tool allows users to easily catch, decode, and copy all Json Web Tokens (JWTs).

If you find yourself frequently sending JWT tokens in your HTTP requests and are tired of the manual process of copying tokens from the developer view into jwt.io for debugging, JWT Sniffer is here to make your life easier. It automatically detects all HTTP(S) requests with headers and cookies that contain a JWT and conveniently displays the content.

With JWT Sniffer, you no longer have to manually extract and decode JWTs, saving you time and effort. Simply install the add-on, and it will handle the rest, making it a valuable tool for developers working with JWTs.