Debug WebSockets in Chrome DevTools. Inspect traffic, send custom messages, and simulate server disconnections.
Users
155
+14 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#71K
#59K among extensions
Version
1.0.11
updated 12 Oct 2026
Users
monthly, 13 months
Latest, 16 Oct 2026:155 usersMove the mouse over the chart for any month
Ratings count
monthly, 13 months
Latest, 16 Oct 2026:3 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Socket Inspector - WebSocket Debugging Tools
✓ Custom Message Simulation: Send custom WebSocket messages to the UI or the server. Build your message and send it over any WebSocket connection on the page. Set the destination to "Client" to simulate a message sent from the server to the UI. Set the destination to "Server" to simulate a message sent from the UI to the server.
✓ Disconnect Simulation: Manually close WebSocket connections with standard close codes and custom reasons. Test your application's reconnect logic and error handling by simulating server disconnects without any backend changes
✓ WebSocket Traffic Inspection: View all sent and received messages in real-time. Search and filter to find exactly what you need. Supports both WS and WSS connections.
✓ Traffic Blocking: Noisy connections can be difficult to debug. Use the traffic blocking feature to temporarily pause live traffic. While traffic is paused, you can still simulate custom messages.
✓ Dark Mode Support: Socket Inspector automatically matches your Chrome DevTools theme, including dark mode.
📖 Check out the documentation: https://socketinspector.com/docs/
🌐 View the source code or make a support request on GitHub: https://github.com/Socket-Inspector/Socket-Inspector