Dev tools · alternatives · 2026
24 alternatives to Open Port Checkers
All-in-one online network diagnostics toolkit
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Port Checker▲87simple tool to check open ports on your computer
2014 · portchecker.co · its alternatives →
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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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TraceWarrior▲14Free network diagnostic tools for it professionals
2025 · tracewarrior.com · its alternatives →
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Port Checker, Online Port Checker, Free Online Port Checker
2024 · openport.net · 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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Local Area Network discovery tool with an interactive Terminal User Interface (TUI) written in Go. Discover, explore, and understand your LAN in an intuitive way. Knock Knock.. who's there? 🚪 - ramonvermeulen/whosthere
Jan 2026 · github.com · its alternatives →
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Test or debug your connection without ads or tracking.
2025 · apps.apple.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 →
- 15
Free way to identify SSL configuration issues
2019 · magenticians.com · its alternatives →
- 16
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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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 →
- 20
A global DNS propagation checker that gives pretty output. Written in dotnet core - unfrl/dug
2021 · github.com · its alternatives →
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Pinger Man▲10Track websites, domains, SSL & ports in a single dashboard
2025 · pingerman.com · its alternatives →
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Globalping▲65Run network commands on globally distributed probes
2023 · globalping.io · 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 →