About PortChecker
PortChecker is a browser-based network utility for checking whether TCP and UDP ports are reachable. Visit PortChecker to troubleshoot connectivity quickly without installing software.
Why I built this
We built PortChecker to make basic port reachability checks easy for developers, system administrators, and anyone troubleshooting a network connection.
Details
CategorySaaS
StageLive
PricingFree
ListedAugust 3, 2026