Dev tools · alternatives · 2026

24 alternatives to Port Checker App

Check open ports for free

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▲87
simple tool to check open ports on your computer
2014 · portchecker.co · its alternatives →
2
Open Port Checker▲19
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 →
3
Open Port Checker▲2
Port Checker, Online Port Checker, Free Online Port Checker
2024 · openport.net · its alternatives →
4
Port Checker Online▲1
Port checker online
2022 · portcheckers.com · its alternatives →
5
Port Checker Tool▲9
Verify Open Ports on Any IP Address
2025 · datafeature.com · its alternatives →
6
Port Checker
Check port status online
Dec 2025 · port-checker.net · its alternatives →
7
Open Port Checkers
All-in-one online network diagnostics toolkit
Mar 2026 · openportcheckers.com · its alternatives →
8
PortTraceX▲76
Reveal why a port is in use
Nov 2025 · porttracex.com · its alternatives →
9
Port Kill – A lightweight macOS status bar development port monitor▲128
Port Kill helps you find and free ports and caches blocking your dev work. - treadiehq/port-kill
2025 · github.com · its alternatives →
10
Portero▲166
Know exactly what's running on every port of your Mac
Jul 2026 · porteroapp.pages.dev · its alternatives →
11
Portview – a diagnostic-first port TUI (Rust, cross-platform)▲21
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 →
12
TraceWarrior▲14
Free network diagnostic tools for it professionals
2025 · tracewarrior.com · its alternatives →
13IB
I built ContainerCVE – a web tool to scan public Docker images▲91
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 →
14
PortManager – Manage ports from your macOS menu bar▲60
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 →
15
Network Tools/Toolkit▲10
Test or debug your connection without ads or tracking.
2025 · apps.apple.com · its alternatives →
16
Port Detective Pro▲4
Find, kill, and guard the processes on your ports
Jun 2026 · automatalabs.ca · its alternatives →
17
netscanner▲2
golang TCP/UDP port scanner to find open or closed ports
2020 · github.com · its alternatives →
18
ISP.Tools▲15
Instant global network diagnostics for ISPs and engineers.
Nov 2025 · isp.tools · its alternatives →
19
Portrackr▲92
Control development ports with ease
2024 · its alternatives →
20
Online Port scanner▲1
portscanner, nmap, unicornscan
2023 · portscanner.online · its alternatives →
21
liwasc – Go network scanner, port scanner and WoL server with a PWA▲30
List, wake and scan nodes in a network. Contribute to pojntfx/liwasc development by creating an account on GitHub.
2021 · github.com · its alternatives →
22
Bulk Persistent Connection Checker▲72
Check if your server supports Persistent Connection
2017 · supple.com.au · its alternatives →
23
Pinger Man▲10
Track websites, domains, SSL & ports in a single dashboard
2025 · pingerman.com · its alternatives →
24
Ping - CbrTool▲3
Free Online Ping Tool for Network Diagnostics
Jul 2026 · cbrtool.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 →