The Best Open Source GlassWire AlternativesTop Network Monitors & Firewalls like GlassWire

Alternatives list

1. 

   

   Portmaster

    185 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

   • Freemium
   • Open Source (GPL-3.0)

   Application types

   • Firewall
   • Ad Blocker

   Origin

   • Austria
   • EU

   Platforms

   • Windows
   • Linux

   

   

   

   +3

   

   More about Portmaster  

   

   Is Portmaster a good alternative to GlassWire?

    

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   4comments

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   Portmaster vs GlassWire Comments

    

   TBayAreaPat

   Positive comment•May 29, 2024

   1

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

   Guest

   Positive comment•Sep 12, 2020

   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 comment•Apr 5, 2022

   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.

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   3 of 4 comments

   

   

   • Portmaster is Freemium and Open SourceGlassWire is Freemium and Proprietary
   • Portmaster is Privacy focused, Lightweight and DecentralizedGlassWire is not according to our users
2. 

   

   simplewall

    206 likes

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

   37 simplewall alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application types

   • Firewall
   • Network Monitor

   Origin

   • Russia

   Platforms

   • Windows

   

   

   

   +2

   

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   5comments

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   simplewall vs GlassWire Comments

    

   Top Positive Comment

   Guest

   Aug 31, 2018

   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

   Aug 6, 2019

   -2

   Does not provide network data.

   Review by a new / low-activity user.

   Shayan12500

   Positive comment•Jan 31, 2021

   0

   It's Free and simple to work with.

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   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. 

   

   Fort Firewall

    39 likes

   Simple firewall for MS Windows.

   38 Fort Firewall alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application types

   • Firewall
   • Network Monitor

   Origin

   • International

   Platforms

   • Windows

   

   

   

   +1

   

   More about Fort Firewall  

   

   Is Fort Firewall a good alternative to GlassWire?

    
5. 

   

   TrafficMonitor

    64 likes

   Shows real-time network speed, CPU, and memory usage on Windows via a floating window or taskbar widget. Features customizable skins, historical traffic stats, resource monitoring, and lightweight operation for home or advanced users. Free and open-source.

   57 TrafficMonitor alternatives

   Cost / License

   • Free
   • Open Source

   Application type

   • Network Monitor

   Origin

   • China

   Platforms

   • Windows

   

   

   

   +9

   

   More about TrafficMonitor  

   

   Is TrafficMonitor a good alternative to GlassWire?

    
6. 

   

   Sniffnet

    21 likes

   Sniffnet is a network monitoring tool to help you easily keep track of your Internet traffic.

   36 Sniffnet alternatives

   Cost / License

   • Free
   • Open Source (Apache-2.0)

   Application type

   • Network Monitor

   Origin

   • Italy
   • EU

   Platforms

   • Mac
   • Windows
   • Linux
   • BSD

   

   

   

   +4

   

   More about Sniffnet  

   

   Is Sniffnet a good alternative to GlassWire?

    
7. 

   

   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

   • Free
   • Open Source (GPL-3.0)

   Application type

   • Firewall

   Origin

   • Hungary
   • EU

   Platforms

   • Windows

   

   

   

   +2

   

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   2comments

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   TinyWall vs GlassWire Comments

    

   Edwin Yip

   Positive comment•Jun 13, 2020

   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 comment•Feb 12, 2018

   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
9. 

   

   OpenSnitch

    43 likes

   OpenSnitch is a GNU/Linux application firewall.

   37 OpenSnitch alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application types

   • Firewall
   • Network Monitor

   Origin

   • Italy
   • EU

   Platforms

   • Linux

   

   More about OpenSnitch  

   

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   1comment

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   OpenSnitch vs GlassWire Comments

    

   Guest

   Positive comment•Feb 20, 2021

   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
10. 

    

    InviZible Pro

     25 likes

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

    32 InviZible Pro alternatives

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application types

    • Privacy Tool
    • Ad Blocker

    Origin

    • Ukraine

    Platforms

    • Android
    • I2P
    • Tor

    

    

    

    +5

    

    More about InviZible Pro  

    

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11. 

    

    LuLu by Objective-See

     53 likes

    LuLu is the free, shared-source macOS firewall that aims to block unknown outgoing connections unless explicitly approved by the user.

    16 LuLu by Objective-See alternatives

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application types

    • Firewall
    • Network Monitor

    Origin

    • United States

    Platforms

    • Mac

    

    

    

    +2

    

    More about LuLu by Objective-See  

    

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12. 

    

    Minimal Firewall

     12 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

    • Free
    • Open Source (AGPL-3.0)

    Application types

    • Firewall
    • Network Monitor

    Origin

    • United States

    Platforms

    • Windows

    

    

    

    +3

    

    More about Minimal Firewall  

    

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13. 

    

    NetSpeedTray

     7 likes

    A lightweight, highly customizable system tray application that monitors and displays real-time network speeds for Windows.

    15 NetSpeedTray alternatives

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Network Monitor

    Platforms

    • Windows

    

    

    

    More about NetSpeedTray  

    

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14. 

    

    BitMeter OS

     38 likes

    BitMeter OS keeps track of how much you use your internet/network connection, and allows you to view this information in a variety of ways.

    38 BitMeter OS alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    • Network Monitor

    Origin

    • United Kingdom

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux

    

    

    

    More about BitMeter OS  

    

    Is BitMeter OS a good alternative to GlassWire?

     

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    2comments

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    BitMeter OS vs GlassWire Comments

     

    Aleksandr Dikov

    Negative comment•Sep 21, 2018

    0

    BitMeter OS is just a logger.

    Guest

    Positive comment•Apr 19, 2020

    0

    This program just monitors my computers network usage. It was perfect for me since I don't need all the features in Glasswire

    Review by a new / low-activity user.

    

    

    • BitMeter OS is Free and Open SourceGlassWire is Freemium and Proprietary