WebSocket Tester
Connect to any ws or wss endpoint from the browser, send and read messages, and inspect the handshake, close codes and byte counters.
DisconnectedSent 0Received 0Traffic 0 B
Text only; binary frames show as a hex preview
Message log
No messages yet — connect and traffic shows up here
Browsers can only speak ws or wss, never raw TCP. An https page may only connect to wss, otherwise the browser blocks it as mixed content.
If the server never pushes, send one message and look for an echo; public echo services are handy for a pure connectivity check.
Code 1000 is a normal close, 1006 means the connection dropped abnormally (handshake failure, certificate problem or a middlebox cutting it) — browsers will not tell you which.
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