Alternatives to Comodo Firewall for all platforms with any license

  • GlassWire icon

    GlassWire

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

    Freemium Windows

  • TinyWall icon

    TinyWall

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

    Free Windows

  • Privatefirewall icon

    Privatefirewall

    This personal firewall and intrusion detection application provides comprehensive online security. It constantly monitors your PC for...

    Free Windows

  • ZoneAlarm Free Firewall icon

    ZoneAlarm Free Firewall

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

    Freemium Windows

  • Gufw icon

    Gufw

    Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured...

    Open Source Linux

  • Windows 10 Firewall Control icon

    Windows 10 Firewall Control

    Protects your applications from undesirable network incoming and outgoing activity, controls applications internet access. Allows you...

    Freemium Windows

  • Windows Firewall Notifier icon

    Windows Firewall Notifier

    Windows Firewall Notifier (WFN) extends the default Windows embedded firewall behavior, allowing to visualize and handle incoming or...

    Open Source Windows

  • Free Firewall icon

    Free Firewall

    Free firewall is a full-featured professional firewall that protects against the threats of the Internet. Control every program on...

    Free Windows

  • Radio Silence icon

    Radio Silence

    Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely...

    Commercial Mac

  • PC Tools Firewall Plus icon

    PC Tools Firewall Plus Discontinued

    PC Tools Firewall Plus is a powerful free personal firewall for Windows® that protects your computer by preventing unauthorized...

    Free Windows

  • Filseclab Personal Firewall icon

    Filseclab Personal Firewall

    Filseclab Personal Firewall Professional Edition is one of the most important software of Filseclab, it is very easy to use and also...

    Free Windows

  • Hands Off! icon

    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...

    Commercial Mac

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  • IceFloor icon

    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...

    Open Source Mac

  • Looknstop icon

    Looknstop

    Look n Stop is the best in its class security application to prevent spyware. Secured by Look n Stop, your PC also becomes fully...

    Commercial Windows

  • Firestarter icon

    Firestarter

    Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore...

    Open Source Linux

  • Murus Firewall icon

    Murus Firewall

    Murus is a frontend for the OS X PF network firewall. From basic filtering to advanced proactive options, Murus allows to easily...

    Freemium Mac

  • netfilter icon

    netfilter

    Netfilter software comprises iptables, ipset, conntrack-tools, libnetfilter and more. It is the core of Linux firewalls and NAT. It...

    Open Source Linux

  • DefenseWall icon

    DefenseWall

    DefenseWall is a sandboxing-style personal firewall solution that wins when your anti-virus fails. DefenseWall is based on a...

    Commercial Windows

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  • Guarddog icon

    Guarddog

    Guarddog is a firewall configuration utility for Linux systems. Guarddog is aimed at two groups of users. Novice to intermediate users...

    Open Source Linux

  • Nufw icon

    Nufw

    NuFW is a GPL extension to Netfilter (that is Linux firewall). It adds identity-based filtering, i.e. it is possible to create...

    Open Source Linux netfilter

  • FortKnox Firewall icon

    FortKnox Firewall

    FortKnox Firewall is personal firewall solution that allows you to protect a PC against hacker attacks, trojans, spyware and internet...

    Commercial Windows

  • NoRoot Firewall icon

    NoRoot Firewall

    Firewall WITHOUT ROOT. Host name/domain name filtering, simple interface, fine-grained access control and no suspicious permissions on...

    Free Android

  • Sygate Personal Firewall icon

    Sygate Personal Firewall Discontinued

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

    Free Windows

  • Armor2net personal firewall icon

    Armor2net personal firewall

    Armor2net personal firewall software stops hackers, data thieves, and protects your PC from Internet-borne threats. Armor2net firewall...

    Commercial Windows

  • VodooShield icon

    VodooShield

    VoodooShield uses a proprietary proactive whitelist snapshot approach to virus and malware protection. VoodooShield is a patented...

    Free Personal Windows

  • SoftPerfect Personal Firewall icon

    SoftPerfect Personal Firewall Discontinued

    The SoftPerfect Personal Firewall is a free network firewall designed to protect your PC against attacks from the Internet or via a...

    Free Windows

  • Wallix Pro Firewall icon

    Wallix Pro Firewall

    Wallix Pro Firewall prevents intruders from accessing your computer and that’s the main objective for a computer firewall. It...

    Free Windows

  • InJoy Firewall icon

    InJoy Firewall

    With InJoy Firewall™ 4.0 you can say good-bye to old-generation Firewall solutions that were difficult to implement, manage and...

    Commercial Windows Linux

  • Core Force

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

    Open Source Windows

  • Online Solutions Security Suite icon

    Online Solutions Security Suite

    Online Solutions Security Suite (OSSS) is a complex protection software that includes a new generation proactive defense system and an...

    Commercial Windows

  • iSafer icon

    iSafer

    Open source Windows firewall

    Open Source Windows

  • Flying Buttress

    As Apple's built-in Firewall preferences improves in both functionality and security, I will be aiming Flying Buttress more at...

    Free Mac

Comodo Firewall Comments

Piece of garbage

Negative Comment by iratosum
about Comodo Firewall Nov 2015

Comodo try to install a Browser replacement(Chromodo) It try also to replace your DNS with it own DNS. Just after installation, you will get anoying advice pop up. And a secure pop up is alway present on my desktop after install. He install GeekBuddy a messenger which will pop up you when you have an app crash... (wow in a firewall, is this serious or what ?). Sound not very serious...

[Edited by iratosum, November 26]

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Best free firewall

Positive Comment by Wagn3r
about Comodo Firewall Aug 2011

The best free firewall for windows, period!

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Comodo, fairly-good reputation over the years.

Positive Comment by peterstaack
about Comodo Firewall Jun 2011

I used this for quite a while on my older Win2000 and WinXP systems, and it was quite effective at keeping my clients out of the dark recessing of the internet. On the newer systems, running Vista/Win7 or a popular Linux distro, I tend to opt for the integrated firewall for convenience sake. However, as needed, I wouldn't hesitate to trust Comodo, given their fairly-good reputation over the years.

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