Web Socket Client is a Chrome extension developed by mschurr. It falls under the category of Browsers and is specifically listed under Add-ons & Tools. This free tool is designed to provide web developers with a simple in-browser web socket client UI for manual testing of web socket endpoints.

The extension offers an easy way to test web socket endpoints during the development process. By clicking on the 'WS Client' icon located to the right of the address bar or accessing the 'Options' in 'chrome://extensions', users can access the functionality of the extension.

One of the key advantages of Web Socket Client is that it requires no special permissions to function. This ensures that users can utilize the extension without any concerns about privacy or security.