WebSocket Tester

WebSocket is a communication protocol that provides full-duplex, real-time communication between a client and server over a single, long-lived TCP connection. Unlike HTTP's request-response model, WebSocket allows the server to push data to the client at any time without the client having to poll for updates. The protocol uses ws:// (unencrypted) and wss:// (encrypted over TLS) URI schemes.

This tool connects to any WebSocket endpoint, sends messages, and logs all events (connection open, messages received, errors, connection close). Developers use WebSocket testing to debug real-time features like live chat, notifications, streaming data, collaborative editing, gaming servers, and financial ticker updates. The tool also supports sending ping frames to test connection health and automatic reconnection logging.

1. Enter WebSocket URL — Type or paste the WebSocket server URL (wss:// or ws://) into the Server URL field.
2. Click Connect — Press Connect to establish the WebSocket connection. The status indicator turns green when connected.
3. Send messages — Type a message and click Send to transmit it. Received messages appear in the Event Log with timestamps.
4. Test connection health — Click Ping to send a WebSocket ping frame and measure round-trip time.
5. Disconnect — Click Disconnect to close the connection gracefully.
6. Try examples — Use Valid Example for a public echo server, or Invalid Example to see connection error handling.