WebSocket Tester
Free online WebSocket tester tool, real-time send and receive
Testing WebSocket Connections
WebSocket provides full-duplex communication channels over a single TCP connection. This tool lets you connect to a WebSocket server, send messages, and view incoming messages in real time. It is useful for testing chat servers, real-time data feeds, and WebSocket APIs.
How to Use the WebSocket Tester
Enter the WebSocket URL (ws:// or wss://), click Connect, then type and send messages. Incoming messages appear in the log panel. Click Disconnect when done.
▶What is the difference between ws:// and wss://?
ws:// is unencrypted WebSocket (like HTTP). wss:// uses TLS encryption (like HTTPS). Always use wss:// in production to protect data in transit.
▶Can I send binary data?
This tool supports sending text messages. Binary frames are displayed as [Binary data] in the log. For binary testing, use a dedicated WebSocket client library.