Alternatives

Products that do what Open Port Checker does

1
Port Checker▲87
simple tool to check open ports on your computer
2014
2RL
Rust Library to check your Internet connectivity▲41
2019 · github.com
3PA
Portview, A diagnostic-first port viewer for Linux (~930 KB, zero deps)▲5
Feb 2026 · github.com
4
PortTraceX▲76
Reveal why a port is in use
Nov 2025
5PM
PortManager – Manage ports from your macOS menu bar▲60
2019 · portmanager.app
6MN
My network connection monitor for Mac▲146
2011 · radiosilenceapp.com
7DA
Dug, A global DNS propagation checker on your CLI▲33
2021 · github.com
8IL
IP Lookup▲72
2013 · iplook.herokuapp.com
9DC
Docker Cheat Sheet▲31
2017 · medium.com
10PE
Port2 – Expose local port to the internet, macOS App▲15
2020 · apps.apple.com
11TF
Tool for testing sites and apps on slow connections▲35
2019 · httpdebugger.com
12PA
Portcullis, a review gate for curl|bash▲5
Apr 2026 · github.com
13LG
liwasc – Go network scanner, port scanner and WoL server with a PWA▲30
2021 · github.com
14DD
Domain DMARC Checker▲6
May 2026 · dmarcdefender.io
15DC
Docker Cheat Sheet Website▲22
2017 · dockercheatsheet.painlessdocker.com
16NM
Network Manager for docker containers▲7
2015 · github.com
17AS
Automated Site/IP Scanner▲6
2020 · simple-scanner.com
18LD
Lookup details about any IP address▲13
2019 · iplist.cc
19TF
Tool for Testing MCP Servers▲5
Jan 2026 · mcp-workbench.ai
20AY
Audit your ISP with a speedtest cronjob▲12
2019 · github.com
21AS
A simple but powerful UI for SSH port forwarding▲10
2020 · github.com
22DC
DNS change monitor and RFC validator▲5
2017 · dnsspy.io
23OI
Online initial congestion window checker▲6
2014 · cdnplanet.com
24MY
Monitor your terminal output in realtime from everywhere▲5
2022 · cli2cloud.com

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