Life & fun · alternatives · 2026
24 alternatives to Online Port scanner
portscanner, nmap, unicornscan
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Online Port scanner launched in 2023; newer entries below may have overtaken it.
- 1
Port Checker▲87simple tool to check open ports on your computer
2014 · portchecker.co · its alternatives →
- 2IB
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 →
- 3NPNo PortScan▲36
2021 · git.encryp.ch · its alternatives →
- 4
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 →
- 5
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- 7
- 8
- 9
Expose local http, tcp or websocket connections to the public internet - amalshaji/portr
2024 · github.com · its alternatives →
- 10
An AI port manager for your Mac.
Aug 2026 · portradar.devmesh.xyz · its alternatives →
- 11
Linux system exploration and troubleshooting tool with first class support for containers - draios/sysdig
2014 · github.com · its alternatives →
- 12
Port Checker, Online Port Checker, Free Online Port Checker
2024 · openport.net · its alternatives →
- 13
Online automated vulnerability scanner to secure firewalls, servers, web applications, and apis. Try 14 days for free.
2020 · hostedscan.com · its alternatives →
- 14
Port Kill helps you find and free ports and caches blocking your dev work. - treadiehq/port-kill
2025 · github.com · its alternatives →
- 15
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 →
- 16
CYREX▲62Web security vulnerability assessment & penetration testing
2021 · cyrex.tech · its alternatives →
- 17
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 →
- 18
A curated CSI driver list for Kubernetes. Compare CSI drivers by feature, storage type, and support to find the right plugin.
2024 · storageclass.info · its alternatives →
- 19
TraceWarrior▲14Free network diagnostic tools for it professionals
2025 · tracewarrior.com · its alternatives →
- 20
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 →
- 21
A Smart and AI driven Web Vulnerability Scanner
2025 · thesmartscanner.com · its alternatives →
- 22
Pinger Man▲10Track websites, domains, SSL & ports in a single dashboard
2025 · pingerman.com · its alternatives →
- 23
A distributed nmap / masscan scanning framework complete with scan scheduling, engine pooling, subsequent scan port diff-ing, and an API client for automation workflows. - rackerlabs/scantron
2020 · github.com · its alternatives →
- 24
All-in-one online network diagnostics toolkit
Mar 2026 · openportcheckers.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 →