Comodo Firewall Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses / malicious software and external attacks by hackers. Safeguard your personal... Free Windows No features added Add a feature 136 Like
Little Snitch Little Snitch is a firewall application that monitors and controls outbound internet traffic. Commercial $ $ $ Mac OS X No features added Add a feature 96 Like
ZoneAlarm Free Firewall ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic. By detecting and preventing intrusions... Freemium Windows No features added Add a feature 35 Like
Radio Silence Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible. Commercial Mac OS X Network Monitoring Add a feature 16 Like
TripMode Block internet connection for apps. Commercial Mac OS X Windows Network Monitoring Add a feature 4 Like
OpenSnitch OpenSnitch is a GNU/Linux port of the Little Snitch application firewall. Free Open Source Linux No features added Add a feature 1 Like
Rubbernet Rubbernet keeps an eye on all network-enabled apps running on your Mac. It provides real-time monitoring so you can keep an eye on the exact state of your live network... Freemium Mac OS X Network Monitoring Add a feature 3 Like Discontinued Official website inaccessible, old download still available at download sites.
LuLu by Objective-See LuLu is the free open-source macOS firewall that aims to block unauthorized (outgoing) network traffic. Free Open Source Mac No features added Add a feature 0 Like
