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What are the best Little Snitch alternatives?

Little Snitch is described as 'A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being sent out? Little Snitch does!' and is a very popular Firewall in the network & admin category. There are more than 25 alternatives to Little Snitch for a variety of platforms, including Windows, Linux, Mac, Android and Android Tablet. The best alternative is LuLu by Objective-See, which is both free and Open Source. Other great apps like Little Snitch are GlassWire, Portmaster, NetLimiter and Radio Silence.

Little Snitch alternatives are mainly Firewalls but may also be Network Monitors or Ad Blockers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Little Snitch.
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A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being...

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  1. LuLu by Objective-See icon

    LuLu by Objective-See

    • Mac
    11 alternatives to LuLu by Objective-See 

    LuLu is the free, shared-source firewall for macOS. Its goal is simple; block any unknown outgoing connections, until approved by the user. While it was designed to generically detect malware by flagging unauthorized networking connections, LuLu can also be used to block OS...

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    LuLu by Objective-See vs Little Snitch opinions
    Almost everyone thinks LuLu by Objective-See is a great alternative to Little Snitch.
    gianclgar

    Free (Libre) Software is and will be always best for the humanity :)

    Positive comment ago
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    0
    yehia2amer

    I Wanted a tool to replace Little Snitch, and this one is GREAT. It is Free, Open Source, and very lite weight.

    Positive comment ago
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    2
    rizhenkov

    It's very simple and free!

    Positive comment ago
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    0
  2. GlassWire icon

    GlassWire

    • Windows
    • Android
    • Android Tablet
    59 alternatives to GlassWire 

    GlassWire is a network security monitoring tool and analyzer that visualizes your network activity on an easy to use graph, alerts you of possible threats, manages your firewall, and more.

    GlassWire's graph shows you real-time network activity broken down by apps, traffic, and hosts.
    GlassWire vs Little Snitch opinions
    Some users think GlassWire is a great alternative to Little Snitch, some don't.
    Guest

    Good software, reputable developers and it has even more features than Little Snitch.

    Positive comment ago
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    0


  3. Portmaster icon

    Portmaster

    • Windows
    • Linux
    18 alternatives to Portmaster 

    Portmaster is a free and open-source application firewall that puts you back in charge over all your computer's network connections.

     Suggest and vote on features
    Features
    1.  Privacy focusedPortmaster is considered a privacy friendly alternative.
    2.  Dark ModePortmaster supports dark mode for comfortable usage in low light conditions.
    3.  No LogsPortmaster doesn't keep any logs of your activities.
    4.  Block TrackersPortmaster has a feature to block trackers from tracking you.
    5.  No TrackingPortmaster will not track you or use your personal data.
    Network Activity Overview
    Detailed Connections of Brave Browser
  4. NetLimiter icon

    NetLimiter

    • Windows
    21 alternatives to NetLimiter 

    NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows. You can use NetLimiter to set download/upload transfer rate limits for applications or even single connection and monitor their Internet traffic.

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    NetLimiter vs Little Snitch opinions
    pros, cons and recent comments
    Guest

    The ltest version makes it impossible to block Windows System and Windows Apps.

    NWO is collecting data on us...

    Negative comment ago
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    -2
  5. Radio Silence icon

    Radio Silence

    • Mac
    15 alternatives to 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.

     Suggest and vote on features
    Features
    1.  Block TrackersRadio Silence has a feature to block trackers from tracking you.
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      Radio Silence vs Little Snitch opinions
      Most users think Radio Silence is a great alternative to Little Snitch.


    • BiniSoft Windows Firewall Control icon

      BiniSoft Windows Firewall Control

      • Windows
      18 alternatives to BiniSoft Windows Firewall Control 

      Windows Firewall Control is a powerful tool that extends the functionality of the Windows Firewall and provides new extra features that make Windows Firewall better. It runs in the system tray and allows the user to control the native firewall easily without having to waste time...

       Suggest and vote on features
      Features
      1.  PortableBiniSoft Windows Firewall Control can be used from a USB stick or similar with no prior installation.
      2.  LightweightBiniSoft Windows Firewall Control consumes less device resources compared to similar apps.
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    • OpenSnitch icon

      OpenSnitch

      • Linux
      27 alternatives to OpenSnitch 

      OpenSnitch is a GNU/Linux port of the Little Snitch application firewall.

       Suggest and vote on features
      Features
      Screenshot
      OpenSnitch vs Little Snitch opinions
      Most users think OpenSnitch is a great alternative to Little Snitch.
    • NetGuard icon

      NetGuard

      • Android
      • Android Tablet
      • F-Droid
      24 alternatives to NetGuard 

      NetGuard provides simple and advanced ways to block access to the internet - no root required.

       Suggest and vote on features
      Features
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    • App Manager icon

      App Manager

      • Android
      • Android Tablet
      • F-Droid
      13 alternatives to App Manager 

      It lists activities, broadcast receivers, services, providers, permissions, signatures, shared libraries, etc. of any app

       Suggest and vote on features
      Features
      1.  Privacy focusedApp Manager is considered a privacy friendly alternative.
      2.  Block TrackersApp Manager has a feature to block trackers from tracking you.
      3.  No registration requiredYou can use most of the features in App Manager without registration.
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    • AFWall+ icon

      AFWall+

      • Android
      17 alternatives to AFWall+ 

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

       Suggest and vote on features
      Features
      1.  Root requiredRequires root to use AFWall+, mainly relevant for Android apps.
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    Showing 10 of 33 alternatives
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