GlassWire Visualize network activity in detail, get notified when new apps access the network, look out for malware, and block bad apps. Freemium $ $ $ Windows Android Android Tablet Graphical component Network Monitoring Push subscriptions Add a feature 110 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
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
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
Hands Off! Hands Off! is an application to monitor and control the access of applications to your network and disks. Being able to monitor the normally unnoticeable activities... Commercial Mac OS X No features added Add a feature 11 Like
TripMode Block internet connection for apps. Commercial Mac OS X Windows Network Monitoring Add a feature 4 Like
IceFloor IceFloor is the first OS X free graphic frontend for PF. Configure the PF firewall in a few clicks using a very simple interface and a step by step in-app configuration... Free Open Source Mac OS X Outbound firewall Add a feature 7 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.
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
Flying Buttress As Apple's built-in Firewall preferences improves in both functionality and security, I will be aiming Flying Buttress more at users who need the advanced firewall... Free Mac OS X No features added Add a feature 0 Like
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
ShaPlus Bandwidth Meter Simple to use bandwidth monitoring software to track Internet bandwidth usage.It remains in tray and displays the bandwidth usage in current session, day and month. This... Free Windows Network Monitoring Add a feature 0 Like
