Dev tools · alternatives · 2026
24 alternatives to netscanner
golang TCP/UDP port scanner to find open or closed ports
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. netscanner launched in 2020; newer entries below may have overtaken it.
- 1
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 · its alternatives →
- 2
Port Checker, Online Port Checker, Free Online Port Checker
2024 · openport.net · its alternatives →
- 3
Port Checker▲87simple tool to check open ports on your computer
2014 · portchecker.co · its alternatives →
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Hey HN, we built Subtrace (https://subtrace.dev) to let you see all incoming and outgoing requests in your backend server—like Wireshark, but for Docker containers. It comes with a Chrome DevTools-like interface. Check out this video: https://www.youtube.com/watch?v=OsGa6ZwVxdA, and see our docs for examples: https://docs.subtrace.dev. Subtrace lets you see every request with full payload, headers, status code, and latency details. Tools like Sentry and OpenTelemetry often leave out these crucial details, making prod debugging slow and annoying. Most of the…
2025 · github.com · its alternatives →
- 6
Port Kill helps you find and free ports and caches blocking your dev work. - treadiehq/port-kill
2025 · github.com · its alternatives →
- 7
Port Checker is a simple tool to check for open ports and test port forwarding setup on your router. Verify and diagnose connection errors on your computer.
2014 · portchecker.co · its alternatives →
- 8
Expose local http, tcp or websocket connections to the public internet - amalshaji/portr
2024 · github.com · its alternatives →
- 9NM
A real-time network connection monitoring tool built with Rust and GTK4, displaying active connections with live I/O statistics in a modern graphical interface. https://github.com/grigio/network-monitor
Nov 2025 · its alternatives →
- 10
This code is still in early beta, but i sincerley hope it will become as ubiquitous as VIM on Linux.
2024 · github.com · its alternatives →
- 11NPNo PortScan▲36
2021 · git.encryp.ch · its alternatives →
- 12
📶 Troubleshoot problems with your Internet connection - jesusprubio/up
2019 · github.com · its alternatives →
- 13
Netler▲107Tiny network monitor for menu bar & notification center 🖥📡
2018 · imagetasks.com · its alternatives →
- 14
the tcpkit was designed to make network packets programable with Lua script - git-hulk/tcpkit
2018 · github.com · its alternatives →
- 15
GitHub▲2All-in-one security scanning toolkit for penetration testers
Dec 2025 · github.com · its alternatives →
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A global DNS propagation checker that gives pretty output. Written in dotnet core - unfrl/dug
2021 · github.com · its alternatives →
- 19
List, wake and scan nodes in a network. Contribute to pojntfx/liwasc development by creating an account on GitHub.
2021 · github.com · its alternatives →
- 20TY
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 · its alternatives →
- 21
I often reached for `socat` when I needed to forward a TCP port from my local machine for testing, and I was curious how easy it was to write such a utility in Go. At 105 lines of Go, it was easy enough. It has limited functionality - TCP only, no port mapping, binds to all local network interfaces - but it serves its purpose, so I wanted to share this with others.
2024 · github.com · its alternatives →
- 22
Fast IP to CIDR lookup in Golang. Contribute to yl2chen/cidranger development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 23
A tc command wrapper. Make it easy to set up traffic control of network bandwidth/latency/packet-loss/packet-corruption/etc. to a network-interface/Docker-container(veth). - thombashi/tcconfig
2016 · github.com · its alternatives →
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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 →