Free Little Snitch Alternatives

    The best free alternative to Little Snitch is GlassWire. If that doesn't suit you, our users have ranked more than 25 alternatives to Little Snitch and 19 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Little Snitch are LuLu by Objective-See (Free, Open Source), BiniSoft Windows Firewall Control (Free), OpenSnitch (Free, Open Source) and AFWall+ (Free, Open Source).

    This page was last updated May 17, 2021

    1. 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.
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      GlassWire vs Little Snitch opinions
      Some users think GlassWire is a great alternative to Little Snitch, some don't.
      Good software, reputable developers and it has even more features than Little Snitch.
      Positive comment 10 months ago

    2. LuLu is the free, shared-source firewall for macOS. Its goal is simple; block any unknown outgoing connections, until approved by the user.
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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 about 1 month ago

      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 about 2 years ago

      rizhenkov It's very simple and free!
      Positive comment almost 3 years ago


    3. 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.
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    4. OpenSnitch is a GNU/Linux port of the Little Snitch application firewall.
      Most users think OpenSnitch is a great alternative to Little Snitch.
    5. Firewall (iptables frontend), based on DroidWall which is no longer being developed. A paid "donate"-version with more features it advertised within the app.
      No screenshots yet

    6. All-Around System Privacy Since the Portmaster sits on your kernel, you can finally protect your whole computer, not just your browser. Do you want to block Ads and Analytics for your whole operating system? The Portmaster has you covered.
      • FreemiumOpen Source
      • Android
      • Android Tablet
      NetGuard provides simple and advanced ways to block access to the internet - no root required. Applications and addresses can individually be allowed or denied access to your Wi-Fi and/or mobile connection.
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    7. It lists activities, broadcast receivers, services, providers, permissions, signatures, shared libraries, etc.
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    8. ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic.
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      Some users think ZoneAlarm Firewall is a great alternative to Little Snitch, some don't.
    9. Protects your applications from undesirable network incoming and outgoing activity, controls applications internet access. Allows you to control personal information leakage via controlling application network traffic.
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      This alternative is disputed. Windows 10 Firewall Control is still a legitimate alternative to Little Snitch, but it might have issues that some users think are important.
    Showing 10 of 19 alternatives