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Free Little Snitch Alternatives

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

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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  • Mac

A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being...

Learn more about Little Snitch

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

    Menu bar
    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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    yehia2amer

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

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    2
    rizhenkov

    It's very simple and free!

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  2. 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.

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

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  3. Portmaster icon

    Portmaster

    • FreeOpen Source
    • Windows
    • Linux

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

    Network Activity Overview
  4. OpenSnitch icon

    OpenSnitch

    • FreeOpen Source
    • Linux

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

    Screenshot
    Most users think OpenSnitch is a great alternative to Little Snitch.
  5. 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.

    Dashboard


  6. NetGuard icon

    NetGuard

    • FreemiumOpen Source
    • Android
    • Android Tablet
    • F-Droid

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

    Screenshot
  7. AFWall+ icon

    AFWall+

    • FreeOpen Source
    • Android

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

    Screenshot
  8. App Manager icon

    App Manager

    • FreeOpen Source
    • Android
    • Android Tablet

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

    Screenshot
  9. Lockdown Privacy icon

    Lockdown Privacy

    • FreeOpen Source
    • Mac
    • iPhone
    • iPad

    Lockdown Privacy is an Open Source and free firewall for your iOS device. We built the product to help protect users from app developers and analytics companies that are monetizing user data without consent or transparency.

    Screenshot
  10. ufw

    • FreeOpen Source
    • Linux

    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.

    Screenshot
Showing 10 of 23 alternatives