ZoneAlarm Firewall Alternatives for Linux

ZoneAlarm Firewall is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The best Linux alternative is Little Snitch. It's not free, so if you're looking for a free alternative, you could try OpenSnitch or Gufw. If that doesn't suit you, our users have ranked more than 25 alternatives to ZoneAlarm Firewall and nine of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to ZoneAlarm Firewall are NethSecurity, InJoy Firewall, Firestarter and ufw KDE.

Copy a direct link to this comment to your clipboard
Alternatives
ZoneAlarm Firewall alternatives page was last updated

Alternatives list

  1. Little Snitch icon
     139 likes

    Firewall application for monitoring and controlling outbound network connections, notifying users of attempted access, supporting rule-based blocking, real-time alerts on suspicious activity, and preventing unauthorized data transmission on macOS systems.

    53 Little Snitch alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2009

    Platforms

    • Mac
    • Linux
    Good alternative?
     
  2. OpenSnitch icon
     47 likes

    GNU/Linux firewall enabling interactive outbound network filtering, outbound application control, blocking of ads and malware domains, centralized GUI node management, input policy configuration, SIEM integration, real-time alerts, and user-level rule customization.

    41 OpenSnitch alternatives

    Cost / License

    Application type

    Since

    • Since 2018

    Platforms

    • Linux
    Good alternative?
     
  3. Gufw icon
     53 likes

    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).

    Cost / License

    Application type

    Since

    • Since 2009

    Platforms

    • Linux
    • Python
    Good alternative?
     
  4. NethSecurity icon
     1 like

    All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2024

    Platforms

    • Linux
    Good alternative?
     
  5. With InJoy Firewall™ 4.0 you can say good-bye to old-generation Firewall solutions that were difficult to implement, manage and measure — InJoy Firewall™ is different...

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2011

    Platforms

    • Windows
    • Linux
    Good alternative?
     
  6. Firestarter icon
     10 likes

    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.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2009

    Alerts

    • Discontinued

    Platforms

    • Linux
    Good alternative?
     
  7. ufw KDE icon
     Like

    KDE front-end to ufw, similar to the GTK/Gnome based gufw.

    Cost / License

    Application type

    Since

    • Since 2018

    Alerts

    • Discontinued

    Platforms

    • Linux
    • KDE
    • Kubuntu
    • KDE neon
    Good alternative?
     
  8. Bouncer App icon
     1 like

    Bouncer is an application to help you choose the correct firewall zone for wireless connections. When you connect to a new network, Bouncer will open a window prompting you for what kind of network (eg home, public, work) it is.

    Cost / License

    Since

    • Since 2025

    Platforms

    • Linux
    • Flathub
    • Flatpak
    Good alternative?
     
  9. Douane icon
     2 likes

    Douane is a personal firewall that protects a user's privacy by allowing a user to control which applications can connect to the internet from their GNU/Linux computer.

    38 Douane alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2017

    Alerts

    • Discontinued

    Platforms

    • Linux
    Good alternative?
     
9 of 9 ZoneAlarm Firewall alternatives