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Alternatives

Products that do what Tunnelsight does

Crafted for developers, network, and security researchers

  1. 1IG
  2. 2IB

    Hi HN — I’m the developer of NetViews, a macOS utility I built because I wanted better visibility into what was actually happening on my wired and wireless networks. I live in the CLI, but for discovery and ongoing monitoring, I kept bouncing between tools, terminals, and mental context switches. I wanted something faster and more visual, without losing technical depth — so I built a GUI that brings my favorite diagnostics together in one place. About three months ago, I shared an early version here and got a ton of great feedback. I listened: a new name (it was PingStalker), a longer trial,…

    Feb 2026 · netviews.app

  3. 3

    Access web3 insights and secure your crypto assets

    2023

  4. 4
    FireWally156

    A free Mac firewall powered by Apple Intelligence

    Dec 2025

  5. 5AT

    Hi everyone, I recently published a small open-source project. It’s a minimal network packet analyzer written in Go — designed more like a learning toy than a replacement for Wireshark. It currently supports parsing basic protocols like TLS, DNS, and HTTP, and includes a tiny fuzzing engine to test payload responses. You can inspect raw packet content directly from the terminal. The output is colored for readability, and the code structure is kept simple and clear. The entire program is very small — just about 400 lines of Go code. I know it’s not anywhere near Wireshark’s level, and I still…

    2025 · github.com

  6. 6WR

    Hey HN! We’re open-sourcing highlight.io (https://github.com/highlight/highlight), a session replay and error monitoring tool. Highlight.io gives you a high-precision video-like replay of what users are doing when an error or exception occurs in your web app, along with a full-fledged error monitoring experience (similar to bugsnag, rollbar, etc..). The main value prop of highlight.io is that we help you understand the full context surrounding an error and allow you to drill down to the code path that a user invoked (i.e user clicked button X, sent network request Y, and…

    2023 · github.com

  7. 7WB

    Hey hn! I'm one of the co-founders of highlight.io, an open source monitoring tool. Today we're sharing a ClickHouse-based logging solution we've been working on. We wanted to showcase how we built it and share how you could try it out to give feedback. Since we started working on highlight.io, we've been hyper-focused on "cohesion", or ensuring that when you install your monitoring stack, all of the resources in that stack (user interactions, requests, traces, logs, etc.) are connected in a consumable way. We've written up more about our philosophy on this here [1]. We started building…

    2023 · github.com

  8. 8

    What's on your WiFi?

    16d ago · apps.apple.com

  9. 9
    Sniffnet241

    Comfortably monitor your Internet traffic

    2024

  10. 10BI

    I'm launching Wirewiki.com today! Wirewiki makes the internet’s hidden infrastructure browsable. I quit my job 5 years ago to scale Nslookup.io. But after reaching 600k monthly users, I hit a ceiling. I couldn't naturally expand beyond DNS because of the domain name. So I went back to the drawing board: how would I make it today? Not as a collection of tools, but as a browsable graph. I've spent hundreds of hours and commits building that. It's not even at 10% of what I want it to be, but more than enough to be useful, and (in my biased opinion) much better than what's out there. Wirewiki…

    Feb 2026 · wirewiki.com

  11. 11
    Expose126

    Share your local sites via secure tunnels

    2021

  12. 12
    Sift143

    Uncover bad network traffic on your phone

    2018

  13. 13AO

    Hey HN. We’re Jay and Vadim from Highlight.io (https://highlight.io). We’re building an open source [1] monitoring platform for web applications. Today we’re excited to be sharing a performance tool we’ve been working on, which helps you inspect the latency of code execution from the client to the server. As engineers at past startups, we often had to debug slow queries, poor load times, inconsistent errors, etc... While tools like Jaegar [2] helped us inspect server-side performance, we had no way to tie user events to the traces we were inspecting. In other words, although we had…

    2024 · github.com

  14. 14PA

    Hi HN - I’m the developer of PingStalker, a macOS utility I built to see what’s really happening on the LAN/WLAN. I live in the CLI, but when it came to discovery and monitoring, I found it limiting. So I built a GUI that brings my favorite tools together in one place. PingStalker started because I wanted to know if something on the network was scanning my machine. I also wanted quick access to core details—external IP, Wi-Fi data, and local topology. Then I wanted more: fast, reliable scans using ARP tables and ICMP. As a Wi-Fi engineer, I couldn’t stop there. I kept adding ways to…

    Nov 2025 · pingstalker.com

  15. 15WL

    Hey all, Just wanted to show off this app I built, its a LAN based WebRTC baby monitor that connects any apple devices together over WIFI so you can turn an old iPad or iPhone into a baby monitor! I got a bit sick of all the sketchy products that require you to buy another device and may or may not connect to Chinese servers and store all your information somewhere. So I figured what if there were no servers and we could just use our existing devices! I would love any feedback! You will need two apple devices to test it, but simulators do work.

    Sep 2025 · apps.apple.com

  16. 16

    Fast, modern, secure VPN tunnel

    2018

  17. 17TY

    Hi HN, Some misbehaving networks drop WireGuard packets either by accident or on purpose. Commonly the latter is done with simple DPI rules that block the handshake initiation [1], but it could be applied to other message types as well. We thought it would be great if there was tool for folks to use as a quick litmus test to see if this happening for them, without having to configure a client to send data through a random, functional WireGuard tunnel to an untrusted remote host. So we built probe.sh. How it works: - The probe.sh web app is an Elixir Phoenix app that spawns a few gen_udp…

    2024 · probe.sh

  18. 18
    Netfox95

    A native local macOS network monitor

    May 2026 · netfox.app

  19. 19

    Analyze your network traffic with ease

    2022

  20. 20

    Search visibility tracker for web professionals

    2016

  21. 21

    Real-time insights into potential breaches and data leaks

    2019

  22. 22IW

    Hi everyone, after months of hard-working, I'm glad to have something to show HN. It's an iOS app to help you directly capture and intercept HTTP/HTTPS Traffic from your iPhone/iPad with ease. It's suitable for any developers who would debug iOS without needing a computer. You can also share all traffic to Proxyman macOS via AirDrop for better previewing. - Please join a beta in TestFlight (iOS 14+): https://testflight.apple.com/join/nQ69eb35 - How it works if you don't have any devices: https://www.youtube.com/watch?v=UpzpoTN8efM&feature=youtu.be…

    2021

  23. 23NC

    This code is still in early beta, but i sincerley hope it will become as ubiquitous as VIM on Linux.

    2024 · github.com

  24. 24

    Device intelligence like never before

    Aug 2026 · dnsight.ai

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