In-browser
WebSocket
Connect, send, and inspect frames for WS debugging.
Idle
Event log
Connection status, sent frames, and received frames appear here.
How it works
The browser opens the socket directly; traffic does not pass through this site. Try the public echo endpoint, or point at your own ws/wss URL. CORS-like rules and TLS are enforced by the browser and the peer. For local services, ws://127.0.0.1:port is typical.