WebSocket Tester

What Is a WebSocket Connection Tester?

A WebSocket connection tester is an online tool for debugging WebSocket services. It supports both ws:// and wss://, connects directly from your browser, sends text messages, and shows send/receive logs in real time, so you can verify that the server works, test message formats, or troubleshoot connection issues. All connections and messages happen in your local browser and are never relayed through this site.

Main Features

• Connects to ws:// and wss:// addresses with a custom URL
• Sends text messages and displays received data and errors in real time
• Timestamped message log covering sends, receives, and system events
• Live connection status, one-click disconnect, and a built-in demo

Use Cases / Notes

Great for checking whether a WebSocket service is reachable, debugging message protocols, and diagnosing connection failures. Note that the connection is initiated by your local browser, so it can be affected by your network and server policies; the URL must start with ws:// or wss://.

How to Use

1. Enter the WebSocket URL (e.g. wss://ws.postman-echo.com/raw)
2. Click "Connect", then type a message and click "Send" once connected
3. Review the send/receive log and status changes, then click "Disconnect" when finished