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WebSocket Inspector

Connect to ws/wss services in the browser, exchange text, JSON, and binary messages, and manage heartbeats, reconnects, filters, and session history.

Waiting for messagesAfter connecting, sent and received records appear here in time order.
0 messages shown
00:00:000 · 0 B0 · 0 BConnection settings, messages, and session history stay in this browser.

About WebSocket Inspector

Debug real-time bidirectional connections. Connect to ws/wss services in the browser, exchange text, JSON, and binary messages, and manage heartbeats, reconnects, filters, and session history.

Key capabilities

  • Send, receive, and inspect messages in real time
  • Supports text, JSON, and hexadecimal binary messages
  • Includes heartbeats and bounded automatic reconnects
  • Save message templates and import or export sessions

Useful for

  • Debug real-time APIs and push services
  • Inspect event payloads and message ordering
  • Diagnose connections, protocols, and close reasons

Frequently asked questions

Is WebSocket Inspector free to use online?

Yes. WebSocket Inspector opens in a modern browser and does not require desktop software installation.

What is WebSocket Inspector useful for?

Common use cases include Debug real-time APIs and push services; Inspect event payloads and message ordering.

Does this tool make network connections?

Some WebSocket Inspector features need to connect to a target service or load online data. Follow the page guidance and access only resources you are authorized to use.

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