The Best 36 Comodo Firewall Alternatives

  • TinyWall

    TinyWall is a free software to harden and control the advanced firewall built into Windows Vista, Windows 7 and Windows 8.

    Free Windows

  • Gufw

    Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports port(s), and many others! Gufw is powered by Uncomplicated Firewall (ufw).

    Free Open Source Linux

  • ZoneAlarm Free Firewall

    ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic.

    Freemium Windows

  • Windows 10 Firewall Control

    Protects your applications from undesirable network incoming and outgoing activity, controls applications internet access. Allows you to control personal information leakage via controlling application network traffic.

    Freemium Windows

  • Privatefirewall

    This personal firewall and intrusion detection application provides comprehensive online security. It constantly monitors your PC for intrusion and reports any findings, so you can take the appropriate action.

    Free Windows

  • 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

  • PC Tools Firewall Plus

    PC Tools Firewall Plus is a powerful free personal firewall for Windows® that protects your computer by preventing unauthorized users from gaining access to your computer through the Internet or a network.

    Free Windows

  • Hands Off!

    Hands Off! is an application to monitor and control the access of applications to your network and disks.

    Commercial Mac OS X

  • Firestarter

    Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators.

    Free Open Source Linux

  • 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 guide (Quick Start).

    Free Open Source Mac OS X

  • netfilter

    Netfilter software comprises iptables, ipset, conntrack-tools, libnetfilter and more. It is the core of Linux firewalls and NAT. It consists of a set of hooks inside the Linux kernel and a number of utilities to manage callback functions.

    Free Open Source Linux

  • Free Firewall

    Free firewall is a full-featured professional firewall that protects against the threats of the Internet. Control every program on your computer by permit or deny access to the Internet.

    Free Windows

  • Murus Firewall

    Murus is a frontend for the OS X PF network firewall. From basic filtering to advanced proactive options, Murus allows to easily configure a complex network setup dragging and dropping icons and moving sliders and selecting checkboxes.

    Freemium Mac OS X

  • Sygate Personal Firewall

    Sygate Personal Firewall is a bit old but good firewall for Windows. It uses very small amount of system resources and is quite robust.

    Free Windows

  • CacheGuard-OS

    CacheGuard OS is an Appliance oriented Operating System dedicated to Web traffic Security and Optimization.

    Free Open Source Windows VirtualBox VMware vSphere Hypervisor Microsoft Hyper-V Server Proxmox Virtual Environment

  • Core Force

    CORE FORCE is a free comprehensive endpoint security solution for Windows 2000 and Windows XP systems. CORE FORCE provides inbound and outbound stateful packet...

    Free Open Source Windows