WebSocket Tester is a tool used to test WebSocket connections. It allows users to input a WebSocket URL, connect to the WebSocket server, and send and receive messages.

Features:

1. Users can input a WebSocket URL and connect to the WebSocket server by clicking the Connect button.

2. The tool automatically detects the connection status and displays the corresponding status when the connection is successful or fails.

3. Users can input messages in the tool and send them to the WebSocket server by clicking the Send button.

4. The tool automatically receives messages from the WebSocket server and displays them in the tool's message receiving area.

Use cases:

1. WebSocket development and testing: When developing or testing WebSocket, developers often need to test WebSocket connections and message transmission. Using WebSocket Tester makes it easy to test WebSocket connections and message transmission.

2. Real-time communication application development: WebSocket is a commonly used communication protocol in real-time communication application development. Using WebSocket Tester makes it easy to test WebSocket connections and message transmission in real-time communication applications.

3. WebSocket data inspection: During code review, reviewers can use WebSocket Tester to test WebSocket connections and message transmission, making it easier to view and understand WebSocket data transmission.