Browser WebSocket Client is an extension for Chrome and Firefox that allows you to send and receive raw JSON messages. This is a very simple and easy way to test your WebSocket server, and to see what messages the server sends back to the browser. The extension is also useful for saving the server URLs, protocols, and messages for later use.

To start using the extension, you need to create a new server in your Chrome or Firefox browser. You can use the Bootstrap 4 user interface, or your own, to create the server. In order to receive the messages, you need to enable the client messaging feature on your server. You will need to make sure that the firewall is disabled on the server side, and you need to install the extension for Chrome and Firefox.

The user interface is very easy to use, and it has a clean and pretty look. The options are located on the left side of the screen, and you can save the settings for later use.

To send the message, you need to create an instance of the WebSocketClient class and set the server address, the connection protocols, and the message body.

To receive the messages, you need to set the user identification and the subscription options.