Alternatives

Products that do what WebSocket DevTools does

Proxy, simulate, block messages on WebSocket traffic

1. 1AT
   A tool for complete WebSocket traffic control▲12

   I built a Chrome extension that acts as a WebSocket proxy, allowing real-time monitoring, message simulation, and traffic interception. Think "Proxyman for WebSockets" but integrated into Chrome DevTools. Key features: Real-time WebSocket monitoring and message capture Send custom messages in both directions (client ↔ server) Block incoming/outgoing messages for testing Background monitoring (captures connections even when DevTools is closed) Why: I was debugging a WebSocket chat app and needed better tools than browser DevTools. Existing solutions required external proxies or were too…

   2025 · websocket-devtools.com

2. 2AU
   A Unixy approach to WebSockets▲421

   2015 · websocketd.com

3. 3
   WebsocketD▲82

   WebSockets are easy now

   2015

4. 4
   Liveblocks DevTools▲111

   Inspect real-time collaborative experiences

   2023

5. 5
   DevReports by PlayerZero▲188

   Everything you need to debug, in one shareable link

   2023

6. 6DA
   DriftDB – an open source WebSocket backend for real-time apps▲367

   Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https://jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…

   2023 · driftdb.com

7. 7WU
   WebSocket.us - an informational website about WebSocket▲42

   2012 · websockets.us

8. 8PA
   Pxy – A Go server that proxies websocket livestreams to RTMP servers▲133

   2020 · github.com

9. 9
   Proxy Tester by ScrapeOps▲208

   Benchmark proxies for reliable, target-specific scraping

   29d ago · scrapeops.io

10. 10AP
    A proxy service for debugging HTTP/S traffic▲75

    2017 · debugproxy.com

11. 11AM
    A minimal and idiomatic WebSocket library for Go▲99

    2019 · github.com

12. 12
    Blitz▲127

    Performance testing on websites, web apps & REST APIs

    2015

13. 13WF
    WebSocket-first development▲120

    2017 · github.com

14. 14IR
    Intercept.rest – Faster API debugging▲89

    Sharing an internal tool that accelerated my development work 10-fold, especially with API debugging. Thought fellow developers here might find it useful. As a developer, I often have trouble reproducing errors at the client end. https://intercept.rest lets me debug and monitor API requests and responses. It is similar to the Network tab in Chrome Developer Tools but works for any API: mobile apps, webhooks, frontend etc. After I shared it with a close circle of friends, they found it incredibly useful and even found new use cases, I never imagined. Been a long time lurker here and…

    2018

15. 15
    DevTools Remote▲111

    Debug your browser tabs remotely via Chrome DevTools.

    2016

16. 16
    NetworkSpy▲89

    HTTP(s) proxy debugger with custom viewer

    Jun 2026 · networkspy.app

17. 17MI
    Monitor.io – remote monitoring and debugging for socket.io▲51

    2014 · drewblaisdell.github.io

18. 18LW
    LightProxy – Web debugging proxy alternative to Charles▲27

    2020 · github.com

19. 19
    Surge▲97

    Advanced web debugging proxy for Mac & iOS

    2016

20. 20
    Reliable Webhook▲81

    Webhooks development relay app with VS Code extension

    2022

21. 21SW
    Socket Wrench – Insomnia/Postman for Websocket Testing▲23

    2019 · asleepysamurai.com

22. 22AG
    A golang websocket server you can pipe to▲45

    2013 · github.com

23. 23CR
    Chrome Remote Debugging Protocol interface▲38

    2016 · github.com

24. 24BA
    Baws, a simple Python and JavaScript WebSocket framework▲11

    2014 · github.com

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