Best ZoneAlarm Free Firewall Alternatives & Competitors in 2025

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.

NinjaOne (Formerly NinjaRMM) provides remote monitoring and management software that combines powerful functionality with a fast, modern UI. Easily remediate IT issues, automate common tasks, and support end-users with powerful IT management tools.

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

Lightweight and non-intrusive firewall

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

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

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

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

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

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

SonicWall security solutions protects your network, systems, users and data from cyber threats.