Life & fun · alternatives · 2026
24 alternatives to Port Checker
simple tool to check open ports on your computer
Port Checker is a free online tool that checks whether specific ports are open on a user's computer and verifies port forwarding configuration on routers. It helps diagnose connection issues by identifying if ports are… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Port Checker launched in 2014; newer entries below may have overtaken it.
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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 →
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Port Checker, Online Port Checker, Free Online Port Checker
2024 · openport.net · its alternatives →
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All-in-one online network diagnostics toolkit
Mar 2026 · openportcheckers.com · its alternatives →
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Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
2024 · v1.web-check.xyz · its alternatives →
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Free way to identify SSL configuration issues
2019 · magenticians.com · its alternatives →
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Port Kill helps you find and free ports and caches blocking your dev work. - treadiehq/port-kill
2025 · github.com · its alternatives →
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I built a small CLI tool that answers "what's using my port?" without the lsof/ss/netstat incantation dance.
Feb 2026 · github.com · its alternatives →
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Find, open and kill ports in a couple of clicks. Works with Node, Python, Ruby, PHP, HTTP and pretty much any process listening on a TCP port.
2019 · portmanager.app · its alternatives →
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Portero▲166Know exactly what's running on every port of your Mac
Jul 2026 · porteroapp.pages.dev · its alternatives →
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Expose local http, tcp or websocket connections to the public internet - amalshaji/portr
2024 · github.com · its alternatives →
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TraceWarrior▲14Free network diagnostic tools for it professionals
2025 · tracewarrior.com · its alternatives →
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I found it odd there wasn’t a simple web tool to scan Docker Hub images for vulnerabilities. So I built one. It’s powered by the popular open-source tool Trivy.
2023 · containercve.com · its alternatives →
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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 · its alternatives →
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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 →
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A command-line tool to kill processes and containers running on specified ports. - jkfran/killport
2023 · github.com · its alternatives →
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Howdy HN! I find myself testing my ping from time to time, especially when my internet seems wonky while WFH. It feels like there should be an easier way test my ping than puling up a terminal or a complex web app - especially when I'm on my phone or any other device that doesn't have a terminal. I figured I should be the change I wish to see in the world and created this super light ping test. I also created a latency monitoring solution (https://github.com/cjjeakle/network-monitor), feel free to clone and try it out! I know there are a lot more mature monitoring…
2022 · ping.projects.chrisjeakle.com · its alternatives →
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ISP.Tools▲15Instant global network diagnostics for ISPs and engineers.
Nov 2025 · isp.tools · 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 →