WebSockets is an exciting technology that enables two-way communication between a web server and a client. It provides a full-duplex communication channel over a single TCP connection, allowing for the real-time exchange of data between server and client. WebSockets are commonly used in applications such as online gaming, video streaming, chatting, and collaboration tools. Developers can use WebSockets to create powerful and interactive web applications with a fast and seamless user experience. WebSockets are highly efficient because they reduce the amount of data sent over the network and minimize the number of HTTP requests and responses. This makes WebSockets an ideal choice for applications that require real-time data transfer between the server and client.