Life & fun · alternatives · 2026
24 alternatives to Open Port Checker
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.
Open Port Checker is a free online tool that checks for open ports on a computer or device and tests port forwarding configuration on routers. It helps users diagnose connection problems caused by blocked ports… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Open Port Checker launched in 2014; newer entries below may have overtaken it.
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Port Checker▲87simple tool to check open ports 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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Expose local http, tcp or websocket connections to the public internet - amalshaji/portr
2024 · github.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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Free way to identify SSL configuration issues
2019 · magenticians.com · 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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speed-test-cli▲315Test your download speed using SpeedTest on the command-line
2017 · github.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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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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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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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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RedirectChecker is a comprehensive URL redirect analysis tool that helps you examine and optimize your website's redirect structure. It offers features like bulk URL checking, detailed redirect path analysis, and SEO impact assessment to ensure your redirects are implemented correctly and efficiently.
2024 · 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 →