IP Monitor is a simple application which monitors your public IP address for changes and lets you set different kinds of notifications such as email, audio, pop up or executing a command

Internet Connection Monitor for Google Chrome

A neat and useful system monitor plugin (widget) for Conky

Limit VPN connections, get desktop notifications/alerts if time limit is reached

A Microsoft Windows PowerShell script demonstrating how to automate checking the network availability of a targeted system and sending an email alert if the system is unresponsive.

sf-ip-monitor extension periodically checks the external IP of current server for changes and notifies administrator about such changes.

Monitor your public IP and get notified when it changes

Golang daemon to monitor IP address changes and trigger executables or scripts so you can decide what should happen next

Real-time monitoring of multiple IP addresses