ZoneAlarm Free Firewall Alternatives

Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses /...

Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.

Powerful SaaS integration toolkit for SaaS developers - create, amplify, manage and publish native integrations from within your app with Cyclr's flexible Embedded iPaaS.

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Lightweight and non-intrusive firewall

Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on...

Visualize network activity in detail, get notified when new apps access the network, look out for...

Little Snitch is a firewall application that monitors and controls outbound internet traffic.

PC Tools Firewall Plus Free Edition is a powerful personal free firewall for Microsoft Windows that protects your computer from hackers and intruders. Firewalls

NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.

Windows Firewall Control is not the built in firewall system in the Windows operating systems.

Windows Firewall Notifier (WFN) extends the default Windows embedded firewall behavior, allowing to...

Radio Silence is a network monitor and firewall for the macOS. The software stops apps from making network connections. The firewall runs in the background and does not require an open window.

pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more

Open Source

Gufw is an easy, intuitive way to manage your Linux firewall.