NetLimiter in an ultimate internet/network control, security and statistical tool for Windows.
Use it to manage bandwidth of individual applications, monitor data coming to and out of your machine in real-time, block unwanted intruders, analyze network problems and much moreā¦
NetLimiter is a firewall of sorts that gives you a massive amount of insight into the processes that are making network connections. You have full control over what you want to allow in and out and what you want to block.
If you were familiar with ZoneAlarm back in the early 2000s, this is basically a modern version of that with a lot of improvements.
By default, NetLimiter operates in an “allow all” mode but you can set the blocker mode to “ask” so that it asks for permission before allowing a new process to make any connections. You can then set a permanent “block” or “allow” rule for each one once you’ve reviewed it.
At the time of writing, NetLimiter has a 28-day trial period and costs $29.00 for a two-year subscription.