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Dev tools · alternatives · 2026

24 alternatives to A tool for complete WebSocket traffic control

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…

This Chrome extension acts as a WebSocket proxy integrated into DevTools, enabling developers to monitor real-time WebSocket traffic, send custom messages in both directions, and block messages for testing. It captures… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1DA

    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 · its alternatives →

  2. 2

    Monitor your Google Analytics site traffic in real-time

    2018 · its alternatives →

  3. 3AU

    websocketd is a single binary that wraps a command-line program and serves it over a WebSocket. Your program reads lines from stdin and writes lines to stdout.

    2015 · websocketd.com · its alternatives →

  4. 4
    PlugThis▲443

    Create your own Chrome Extensions by chatting with AI

    Jul 2026 · plugthis.ai · its alternatives →

  5. 5
    Proxyman▲196

    An modern and intuitive HTTP debugging proxy

    2019 · proxyman.com · its alternatives →

  6. 6

    Supercharge your Email, Twitter, and Web with ChatGPT

    2023 · chromewebstore.google.com · its alternatives →

  7. 7

    Everything you need to debug, in one shareable link

    2023 · its alternatives →

  8. 8RT
  9. 9

    A chrome extension tracks front-end JavaScript that uses DOM / jQuery APIs to manipulate html dom elements (e.g., change style, attach event listener) at runtime. - pilagod/js-tracker

    2018 · github.com · its alternatives →

  10. 10
    inProxy▲65

    Free Cross-platform Web Debugging and Mocking tool

    2020 · its alternatives →

  11. 11

    Reverse proxy for realtime APIs.

    2015 · pushpin.org · its alternatives →

  12. 12

    Track browser extension installations / threats in real-time

    2019 · extensionmonitor.com · its alternatives →

  13. 13

    Test, debug and explore Websocket APIs

    2025 · metorial.com · its alternatives →

  14. 14

    One-click connection between multiple IPs

    2022 · oxylabs.io · its alternatives →

  15. 15

    Chrome Devtools Protocol rust API. Contribute to mattsse/chromiumoxide development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  16. 16AP
  17. 17
    FlowLens▲134

    Hi HN, We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots. FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code. You can try it here: https://magentic.ai/flowlens Any feedback—good, bad, or brutal—is welcome.

    Dec 2025 · magentic.ai · its alternatives →

  18. 18FR

    Deliver real-time data and low-latency WebSockets & pub/sub at the edge with Fastly. Scale chat, IoT, live apps and messaging with a self-managed infrastructure.

    2017 · fanout.io · its alternatives →

  19. 19SW
  20. 20

    Chrome Debugging Protocol interface for Node.js. Contribute to cyrus-and/chrome-remote-interface development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  21. 21
  22. 22

    Hey HN, I'm Arjun, an 18-year-old intern at Socket. I've been working on a project that I'm really excited to share with you all - a browser extension that makes it easier to check the security of NPM packages before you use them. You can try the extension on any Chromium-based browser or on Firefox. Chrome extension: https://chrome.google.com/webstore/detail/socket-security/jb... Firefox add-on: https://addons.mozilla.org/en-US/firefox/addon/socket-securi... Socket scans NPM packages for malware, vulnerabilities, code smell, and…

    2023 · chrome.google.com · its alternatives →

  23. 23

    WebSockets are easy now

    2015 · websocketd.com · its alternatives →

  24. 24PM

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →