OpenSnitch AlternativesFirewalls & Network Monitors like OpenSnitch

OpenSnitch is described as 'GNU/Linux application firewall' and is a Firewall in the security & privacy category. There are more than 25 alternatives to OpenSnitch for a variety of platforms, including Linux, Mac, Windows, Android and iPhone apps. The best OpenSnitch alternative is Portmaster, which is both free and Open Source. Other great apps like OpenSnitch are simplewall, Pi-hole, GlassWire and Little Snitch.

OpenSnitch iconOpenSnitch
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OpenSnitch is a GNU/Linux application firewall.

More about OpenSnitch
More about OpenSnitch
OpenSnitch alternatives page was last updated Mar 3, 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.

    31 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 OpenSnitch

     

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

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

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

    simplewall

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

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

    simplewall VS OpenSnitch

     
    Comments about simplewall as an Alternative to OpenSnitch
    Nathan
    Positive Jul 2, 2020
    0

    Closest in terms of functionality if looking for an open source alternative that supports windows instead of linux

    OpenSnitch Icon
    simplewall icon
    • simplewall is Free and Open SourceOpenSnitch is also Free and Open Source
    • simplewall is Lightweight and Privacy focusedOpenSnitch is not according to our users
  4. Pi-hole icon

    Pi-hole

     151 likes
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    Block ads for all your devices without the need to install client-side software. The Pi-hole blocks ads at the DNS-level, so all your devices are protected.

    42 Pi-hole alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Linux
    • Self-Hosted
    • CentOS
    • Fedora
    • Ubuntu
    • Debian
    • Raspberry Pi OS
    • Raspberry Pi
    The Web interface shows how many ads were blocked, a query log, and more.

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Network-wide blocking
    2.  Adblocking via DNS
    3.  DNS Server
    4.  Self-hosted
    5.  Ad-free
    6.  Dark Mode
    7.  Dockerized
    8.  DNS Proxy
    9.  Custom DNS

    Pi-hole VS OpenSnitch

     

    • Pi-hole is the most popular Self-Hosted alternative to OpenSnitch.

    • Pi-hole is Free and Open SourceOpenSnitch is also Free and Open Source
    • Pi-hole is Privacy focused and LightweightOpenSnitch is not according to our users
  5. Ad
    Screenshot
    GlassWire icon
    GlassWire

    Visualize network activity in detail, get notified when new apps access the network, look out for malware, and block badly behaving apps.

    https://www.glasswire.com
    Learn More
  6. GlassWire icon

    GlassWire

     146 likes
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    Visualize network activity in detail, get notified when new apps access the network, look out for malware, and block badly behaving apps.

    64 GlassWire alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    • Android
    • Android Tablet
    GlassWire's graph shows you real-time network activity broken down by apps, traffic, and hosts.

    Properties

    1.  Intuitive Interface

    Features

    1.  Network activity
    2.  Block apps
    3.  Built-in Firewall
    4.  Graphical component
    5.  Graphs
    6.  Traffic Monitoring
    7.  Push subscriptions
    8.  Network Tools

    GlassWire VS OpenSnitch

     

    • GlassWire is the most popular Android & Android Tablet alternative to OpenSnitch.

    • GlassWire is Freemium and ProprietaryOpenSnitch is Free and Open Source
  7. Little Snitch icon

    Little Snitch

     134 likes
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    A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being sent out? Little Snitch does!

    38 Little Snitch alternatives

    License model

    Application types

    Country of Origin

    • AT flagAustria
    • European Union flagEU

    Platforms

    • Mac
    Little Snitch screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
    2.  No registration required
    3.  Rule based
    4.  Traffic Monitoring
    5.  Traffic Analysis
    6.  Custom rules
    7.  Application Firewall
    8.  Usage statistics
    9.  Real-time traffic

    Little Snitch VS OpenSnitch

     

    • Little Snitch is the most popular Mac alternative to OpenSnitch.

    • Little Snitch is the most popular commercial alternative to OpenSnitch.

    • Little Snitch is Paid and ProprietaryOpenSnitch is Free and Open Source
    • Little Snitch is Privacy focusedOpenSnitch is not according to our users
  8. Fort Firewall icon

    Fort Firewall

     28 likes
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    Simple firewall for MS Windows.

    33 Fort Firewall alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • UZ flagUzbekistan

    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 OpenSnitch

     
  10. NetGuard icon

    NetGuard

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

    36 NetGuard alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • NL flagNetherlands
    • European Union flagEU

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    NetGuard screenshot 1
    NetGuard screenshot 2
    NetGuard screenshot 3

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  No Root Required
    2.  Website blocking
    3.  Dark Mode
    4.  No registration required
    5.  No Tracking
    6.  Ad-free

    NetGuard VS OpenSnitch

     
  11. BiniSoft Windows Firewall Control icon

    BiniSoft Windows Firewall Control

     69 likes
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    A powerful tool which extends the functionality of Windows Firewall and provides new extra features which makes Windows Firewall better.

    21 BiniSoft Windows Firewall Control alternatives

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    Dashboard

    Properties

    1.  Lightweight

    Features

    1.  No registration required
    2.  Portable
    3.  Application Blocker

    BiniSoft Windows Firewall Control VS OpenSnitch

     
  12. InviZible Pro icon

    InviZible Pro

     17 likes
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    InviZible Pro uses DNSCrypt Protocol, Tor and i2pd (I2P Daemon) (PurpleI2P) to achieve maximum security, privacy and comfortable use of the Internet.

    25 InviZible Pro alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • UA flagUkraine

    Platforms

    • Android
    • I2P
    • Tor
    InviZible Pro screenshot 1

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Dark Mode
    2.  No Tracking
    3.  Block Trackers
    4.  Decentralized
    5.  End-to-End Encryption
    6.  Ad-free
    7.  No registration required
    8.  No Logs
    9.  Anonymous Proxy
    10.  AES-256 Encryption
    11.  Switch DNS servers
    12.  DNS over HTTPS

    InviZible Pro VS OpenSnitch

     
  13. Little Snitch Mini icon

    Little Snitch Mini

     1 like
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    As soon as you’re connected to the Internet, your apps can send whatever they want to wherever they want, unnoticed by you, because all of this happens invisibly under the hood.

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • AT flagAustria
    • European Union flagEU

    Platforms

    • Mac
    Little Snitch Mini screenshot 1

    Little Snitch Mini Features

    1.  Network Filtering
    2.  Traffic Monitoring
    3.  Application Firewall

    Little Snitch Mini VS OpenSnitch

     
  14. NethSecurity icon

    NethSecurity

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

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • IT flagItaly
    • European Union flagEU

    Platforms

    • Linux
    NethSecurity screenshot 1

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  Works Offline
    2.  No registration required
    3.  Ad-free
    4.  Dark Mode
    5.  No Tracking
    6.  Linux-based

    NethSecurity VS OpenSnitch

     
  15. 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).

    31 Gufw alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • ES flagSpain
    • European Union flagEU

    Platforms

    • Linux
    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 OpenSnitch

     
    Comments about Gufw as an Alternative to OpenSnitch
    Most Recent Comment
    Guest
    Negative Apr 26, 2018
    8

    it's a Firewall not an application Firewall

    Guest
    Negative Mar 3, 2025
    0

    not an application firewall

    Guest
    Negative Jan 25, 2021
    0

    the ufw/gufw doesn't help to monitor new connections from your system to "outerspace"

    OpenSnitch Icon
    Gufw icon
    • Gufw is Free and Open SourceOpenSnitch is also Free and Open Source
    • Gufw is LightweightOpenSnitch is not according to our users
12 of 33 OpenSnitch alternatives