Alternatives to ZoneAlarm Free Firewall for all platforms with any license

  • GlassWire icon


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

    Freemium Windows

  • Comodo Firewall icon

    Comodo Firewall

    Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses / malicious software and external attacks by...

    Free Windows

  • Little Snitch icon

    Little Snitch

    Little Snitch intercepts unwanted connection attempts, and lets you decide how to proceed.

    Commercial Mac

  • TinyWall icon


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

    Free Windows

  • Gufw icon


    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

  • Privatefirewall icon


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

    Free Windows

  • 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

  • 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

  • TripMode icon


    Block internet connection for apps.

    Commercial Mac

  • 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

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  • 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

  • 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

  • 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

  • Looknstop icon


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

    Open Source Linux

  • 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

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  • Rubbernet icon

    Rubbernet Discontinued

    Rubbernet keeps an eye on all network-enabled apps running on your Mac. It provides real-time monitoring so you can keep an eye on the...

    Freemium Mac

  • DefenseWall icon


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

    Commercial Windows

  • Guarddog icon


    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 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

  • 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


    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

  • NetDefender icon


    NetDefender is a free and open source firewall for Windows 2000/XP. Features: * User can Block all Traffic and can Allow all...

    Open Source 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

  • Leopard Flower icon

    Leopard Flower

    Personal firewall for Linux OS (based on libnetfilter_queue) which allows to allow or deny Internet access on a per-application basis...

    Open Source 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


    Open source Windows firewall

    Open Source Windows

  • NetPeeker icon


    Monitor network applications, personal firewall, trace whois, network speed limiter. NetPeeker is a network tool set that combines...

    Commercial Windows

ZoneAlarm Free Firewall Comments

2016 version

Negative Comment by fixitmanarizona
about ZoneAlarm Free Firewall Mar 2016

i've had zonelarm for a number of years but stupidly "upgraded" to the 2016 (14.something) version on my XP computer. It is NOT compatible with the AVAST antivirus I have installed, it also installs a non-compatable version of .NET and some other things like toolbars and caused me all kind of hell. System freezes, not-boot states, etc. AND good luck removing it, as it won't uninstall in safe mode!
Can no longer recommend this.
Maybe commodo instead?


Latest update installs search conduit.

Negative Comment by Kooie
about ZoneAlarm Free Firewall Nov 2011

For those who don´t know what search conduit is, it´s a piece of garbage which replaces your default search provider (google, yahoo, bing..) for their website (
Latest upgrade of ZoneAlarm doesn´t improve security of the app, it just installs a toolbar (in my case in Firefox), you can disable and remove it, but the damage is done and it´s no easy to 100% remove it from your system.


Has a good pedigree, but I've found the latest builds to be ...

Comment by peterstaack
about ZoneAlarm Free Firewall Jun 2011

Has a good pedigree, but I've found the latest builds to be a little heavy on the system resources (I was running it on older workstations), and opted for either the OS default firewall or a lighter product.


I still use this, gets the job done, but I've yet to find a ...

Comment by s0me0ne
about ZoneAlarm Free Firewall Jun 2011

I still use this, gets the job done, but I've yet to find a better alternative. The site shows a few but not many likes on them or enough info for me to switch yet.


Just a note: Antiviruses, like AVG are *not* alternatives t ...

Comment by 72dpi
about ZoneAlarm Free Firewall Jun 2011

Just a note: Antiviruses, like AVG are *not* alternatives to firewalls like Zone Alarm. They're two different things. However, it doesn't seem to be any way to remove AVG from Zone Alarm's alternatives-list...?


Previous versions were good, these days ZoneAlarm seems way ...

Comment by monkeybear
about ZoneAlarm Free Firewall Jun 2011

Previous versions were good, these days ZoneAlarm seems way too bloated... I'd pass.