Port Checker
Check open ports and verify port forwarding setup on your router.
Port Checker lets users check whether a port is open or closed on a device, with a default target of the visitor's own IP address that can be changed to other remote clients and servers. The site notes that using a VPN or proxy may prevent it from detecting the device IP correctly. It also provides reference information on common port numbers and an explanation of port forwarding.
4 alternatives to Port Checker
Ranked by how well each tool replaces Port Checker: shared features, audience, price and popularity.
Software tools and guides for setting up port forwarding in home and office routers.
Has a free plan.
Free plan60 out of 100 matchContact salesFree port forwarding solution for exposing a local machine to the internet from behind a
Has a free plan.
Free plan48 out of 100 match$2.50/mo- 38 out of 100 matchFree