The best Firewall alternative to Sniffnet is GlassWire, which is free. If that doesn't work for you, our users have ranked more than 25 alternatives to Sniffnet, but unfortunately only two of them are Firewalls.
Visualizes real-time and historical network activity, delivers alerts for suspicious behavior and unknown connections, manages firewall rules, reports DNS and system changes, identifies remote hosts, monitors app usage, supports remote monitoring, and detects possible threats.
BWMeter is a powerful bandwidth meter, monitor, traffic controller and firewall, which measures, displays and controls all traffic to/from your computer or on your network. Unlike other products, it can analyze the data packets (where they come from, where they go, which port...
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