The Best Free GlassWire AlternativesTop Network Monitors & Firewalls like GlassWire

The best free alternative to GlassWire is Portmaster, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to GlassWire and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to GlassWire are simplewall, TrafficMonitor, Fort Firewall and TinyWall.

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GlassWire alternatives are mainly Network Monitors, but if you're looking for Firewalls or Privacy Tools you can filter on that. Other popular filters include Linux, Mac, Open Source, Android, Free and Windows. These are just examples - use the filter bar below to find more specific alternatives to GlassWire.
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Alternatives list

  1. Portmaster icon

    Portmaster

     179 likes

    Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.

    37 Portmaster alternatives

    Cost / License

    Application types

    Platforms

    • Windows
    • Linux
    Dashboard PMv1.4
     
    |
    4
    Portmaster vs GlassWire Comments
    TBayAreaPat
    Positive
    1

    Powerful control for the tech-savvy. More free firewall blocking options than Glasswire, which only allows 2 blocks for free.

    Guest
    Positive
    5

    It's just like glasswire except for the fact that portmaster has more features than glasswire, and it is also for more advanced users.

    Review by a new / low-activity user.
    williamson
    Positive
    0

    It's Open Source and the internals are much better documented, no security tool is perfect but at least here if you're a professional you can see how to works to know what it is and is not capable of. However with GlassWire they just give generic help desk responses whenever you ask questions, either because they don't know or are just trying to cover it up for marketing.

    3 of 4 comments
    • Portmaster is Freemium and Open SourceGlassWire is Freemium and Proprietary
    • Portmaster is Privacy focused and LightweightGlassWire is not according to our users
  2. simplewall icon

    simplewall

     204 likes

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

    37 simplewall alternatives

    Cost / License

    Application types

    Platforms

    • Windows
    Main Window
     
    |
    5
    simplewall vs GlassWire Comments
    Top Positive Comment
    Guest
    3

    It's free, doesn't nag you, and gives you a similar level of control.

    Review by a new / low-activity user.
    Top Negative Comment
    Guest
    -2

    Does not provide network data.

    Review by a new / low-activity user.
    Shayan12500
    Positive
    0

    It's Free and simple to work with.

    3 of 5 comments
    • simplewall is Free and Open SourceGlassWire is Freemium and Proprietary
    • simplewall is Lightweight and Privacy focusedGlassWire is not according to our users
  4. TrafficMonitor icon

    TrafficMonitor

     65 likes

    TrafficMonitor is a network monitoring suspension window software in Windows. It can display the current network speed, CPU and memory usage. It also support the functions of display in the taskbar, change skin and historical traffic statistics.

    58 TrafficMonitor alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    Taskbar No activity
     
  6. TinyWall icon

    TinyWall

     62 likes

    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...

    32 TinyWall alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    TinyWall screenshot 1
     
    |
    2
    TinyWall vs GlassWire Comments
    Edwin Yip
    Positive
    0
    • doesn't slow down my pc, and does what it's supposed to do, not more, not less.
    • allow me to block all programs and then whitelist by picking a window and a .exe file.
    • I want want it to have the ability to prompt me for the first time a program is connecting to the Internet, so that I don't have to whilelist manually.
    • And it's free! (actually I'm willing to pay if it's not).
    Guest
    Negative
    0

    It's simply not a user friendly alternative to Glasswire. It might technically have some of the same features but it's a different kind of user experience altogether

    Review by a new / low-activity user.
    • TinyWall is Free and Open SourceGlassWire is Freemium and Proprietary
    • TinyWall is LightweightGlassWire is not according to our users
  7. BiniSoft Windows Firewall Control icon

    BiniSoft Windows Firewall Control

     72 likes

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

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Windows
    Dashboard
     
    |
    1
    BiniSoft Windows Firewall Control vs GlassWire Comments
    Guest
    Positive
    0

    its good alternative to glass wire, like glasswire it also displays notifications for apps that try to access internet, and you can easily block out spooky ones to access the internet

    Review by a new / low-activity user.
    • BiniSoft Windows Firewall Control is Free and ProprietaryGlassWire is Freemium and Proprietary
    • BiniSoft Windows Firewall Control is LightweightGlassWire is not according to our users
  10. OpenSnitch icon

    OpenSnitch

     42 likes

    OpenSnitch is a GNU/Linux application firewall.

    37 OpenSnitch alternatives

    Cost / License

    Application types

    Platforms

    • Linux
    OpenSnitch screenshot 1
     
    |
    1
    OpenSnitch vs GlassWire Comments
    Guest
    Positive
    1

    application control for linux that's not iptables. perfect.

    Review by a new / low-activity user.
    • OpenSnitch is Free and Open SourceGlassWire is Freemium and Proprietary
    • OpenSnitch is Lightweight and Privacy focusedGlassWire is not according to our users
  13. Minimal Firewall icon

    Minimal Firewall

     9 likes

    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.

    35 Minimal Firewall alternatives

    Cost / License

    Application types

    Platforms

    • Windows
    Minimal Firewall screenshot 1
     
  14. NetSpeedMonitor icon

    NetSpeedMonitor

     61 likes

    NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar designed to be used on computers that run Windows XP, Windows Server 2003, Windows Vista or Windows 7. With NetSpeedMonitor you can monitor the current speed (up- and downstream) of your Network...

    42 NetSpeedMonitor alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    NetSpeedMonitor screenshot 1
     
    |
    1
    NetSpeedMonitor vs GlassWire Comments
    Guest
    Negative
    4

    Glasswire is a firewall and logging tool, Netspeedmonitor only monitors current connection speed

    Review by a new / low-activity user.
    • NetSpeedMonitor is Free and ProprietaryGlassWire is Freemium and Proprietary
    • NetSpeedMonitor is LightweightGlassWire is not according to our users
12 of 51 GlassWire alternatives