NethSecurity AlternativesFirewalls and other similar apps like NethSecurity

NethSecurity is described as 'All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection' and is a Firewall in the security & privacy category. There are more than 25 alternatives to NethSecurity for a variety of platforms, including Windows, Linux, Android, Mac and Web-based apps. The best NethSecurity alternative is Portmaster, which is both free and Open Source. Other great apps like NethSecurity are simplewall, Fort Firewall, TinyWall and NetLimiter.

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

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More about NethSecurity
NethSecurity alternatives page was last updated Jun 25, 2025
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  1. Portmaster icon

    Portmaster

     143 likes
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    Portmaster is a free and open-source privacy suite that puts you back in charge of your computer.

    34 Portmaster alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Windows
    • Linux
    Dashboard PMv1.4

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Firewall
    2.  Network Tools
    3.  Application Firewall
    4.  Block Trackers
    5.  DNS Resolver
    6.  Ad-free
    7.  No Tracking
    8.  No registration required
    9.  Dark Mode
    10.  DNS over HTTPS
    11.  Spam Filter
    12.  Built-in VPN

    Portmaster VS NethSecurity

     

    • Portmaster is the most popular Windows & Linux alternative to NethSecurity.

    • Portmaster is the most popular Open Source & free alternative to NethSecurity.

    • Portmaster is Freemium and Open SourceNethSecurity is Free and Open Source
    • Portmaster is Privacy focusedNethSecurity is not according to our users
  2. simplewall icon

    simplewall

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

    36 simplewall alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • RU flagRussia

    Platforms

    • Windows
    Main Window

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Ad-free
    2.  Firewall
    3.  Portable
    4.  Built-in Firewall
    5.  Outbound firewall
    6.  No registration required
    7.  No Tracking
    8.  Block Trackers
    9.  Built-in timer
    10.  Dark Mode
    11.  Works Offline

    simplewall VS NethSecurity

     
  4. Fort Firewall icon

    Fort Firewall

     28 likes
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    Simple firewall for MS Windows.

    36 Fort Firewall alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • International

    Platforms

    • Windows
    Main UI

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Firewall
    2.  No registration required
    3.  Ad-free
    4.  Portable
    5.  Dark Mode
    6.  No Tracking
    7.  Traffic shaping
    8.  Auto Update
    9.  Block Trackers
    10.  Stats
    11.  Scheduling

    Fort Firewall VS NethSecurity

     
  5. TinyWall icon

    TinyWall

     61 likes
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    TinyWall is a free software to harden and control the advanced firewall built into Windows Vista, Windows 7 and Windows 8. TinyWall includes a combination of features that sets it apart from both commercial and freeware firewalls: TinyWall does not annoy you with popups at all...

    31 TinyWall alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • HU flagHungary
    • European Union flagEU

    Platforms

    • Windows
    TinyWall screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  No registration required

    TinyWall VS NethSecurity

     
  6. NetLimiter icon

    NetLimiter

     90 likes
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    Comprehensive Windows software for internet traffic control, enabling users to set bandwidth limits for applications or connections. Offers real-time monitoring, long-term stats per app, and detailed internet usage reports. Ideal for managing data efficiently and enhancing network performance.

    28 NetLimiter alternatives

    License model

    Application types

    Platforms

    • Windows
    NetLimiter screenshot 1

    Top NetLimiter Features

    1.  Bandwidth limiting
    2.  Net Limiting
    3.  Filtering
    4.  Quotas support
    5.  Custom rules
    6.  Application Blocker
    7.  Traffic Monitoring
    8.  Ad-free
    9.  Priorities
    10.  Built-in Firewall
    11.  Dark Mode

    NetLimiter VS NethSecurity

     

    • NetLimiter is the most popular commercial alternative to NethSecurity.

    • NetLimiter is Paid and ProprietaryNethSecurity is Free and Open Source
  7. OpenSnitch icon

    OpenSnitch

     38 likes
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    OpenSnitch is a GNU/Linux application firewall.

    35 OpenSnitch alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • IT flagItaly
    • European Union flagEU

    Platforms

    • Linux
    OpenSnitch screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Application Firewall
    2.  Firewall
    3.  Network Filtering
    4.  Ad-free
    5.  No registration required
    6.  Block Trackers
    7.  No Tracking

    OpenSnitch VS NethSecurity

     
  9. Comodo Free Firewall icon

    Comodo Free Firewall

     152 likes
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    Comodo Firewall is a personal firewall, a genre of security software that secures PCs by policing Internet traffic on an app by app basis. The most prominent feature of a personal firewall is generating popup notifications when an unknown program attempts to access the Internet...

    35 Comodo Free Firewall alternatives

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    A security popup is one of the most commonly seen user interface components of this app and its main purpose.
    Bundleware

    The app installs other components by default such as Dragon Web Browser. You must click "Options" during install to deselect those components.

    Comodo Free Firewall VS NethSecurity

     
  10. Minimal Firewall icon

    Minimal Firewall

     5 likes
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    Minimal Firewall is a portable Windows firewall frontend that alerts users to internet connections without requiring custom kernel modifications or disabling core isolation, striking a balance between TinyWall's security and SimpleWall's functionality.

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    Minimal Firewall screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Dark Mode
    2.  No Tracking
    3.  No registration required
    4.  Ad-free
    5.  Portable
    6.  Decentralized
    7.  No Logs

    Minimal Firewall VS NethSecurity

     
  11. AFWall+ icon

    AFWall+

     40 likes
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    Firewall (iptables frontend), based on DroidWall which is no longer being developed. A paid "donate"-version with more features it advertised within the app.

    22 AFWall+ alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • IN flagIndia

    Platforms

    • Android
    AFWall+ screenshot 1
    AFWall+ screenshot 2
    AFWall+ screenshot 3

    AFWall+ Features

    1.  Root required
    2.  Multiple languages

    AFWall+ VS NethSecurity

     

    • AFWall+ is the most popular Android alternative to NethSecurity.

    • AFWall+ is Freemium and Open SourceNethSecurity is Free and Open Source
  12. Gufw icon

    Gufw

     51 likes
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    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).

    34 Gufw alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • ES flagSpain
    • European Union flagEU

    Platforms

    • Linux
    • Python
    Gufw screenshot 1
    Main Gufw window where you set which applications to allow or block.
    Adding the new rules

    Properties

    1.  Lightweight

    Features

    1.  Peer-To-Peer

    Gufw VS NethSecurity

     

  13. ufw

     26 likes
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    Ufw stands for Uncomplicated Firewall, and is program for managing a netfilter firewall. It provides a command line interface and aims to be uncomplicated and easy to use.

    21 ufw alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • AU flagAustralia

    Platforms

    • Linux
    ufw screenshot 1

    Properties

    1.  Lightweight

    ufw VS NethSecurity

     
  14. Karma Firewall icon

    Karma Firewall

     2 likes
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    Karma Firewall app lets you take control back of your phone and block internet traffic to and from specific apps. This is a simple yet powerful firewall with an easy to use intuitive GUI which allows you to protect your sensitive data.

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid
    Karma Firewall screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  No registration required
    3.  Dark Mode
    4.  Block Trackers
    5.  No Logs
    6.  No Tracking

    Karma Firewall VS NethSecurity

     
12 of 33 NethSecurity alternatives