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GlassWire Firewall Pros and Cons: Top Advantages and Disadvantages

Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users find GlassWire Firewall has an easy-to-use interface that simplifies network monitoring with intuitive visualizations. (1 mentions)
Users appreciate the intuitive monitoring features of GlassWire, enabling easy tracking of network usage through simple interfaces. (1 mentions)

Top Pros or Advantages of GlassWire Firewall

GlassWire Firewall Reviews FAQs

Generated using AI

Last updated: Nov 04, 2026

What is GlassWire Firewall, and what problem is it built to solve?

GlassWire Firewall is a network monitoring and security tool that gives users real-time visibility into network activity. It is designed to help detect and manage unusual activity through visual monitoring, bandwidth tracking, remote server monitoring, reports, and alerts.

What languages does GlassWire Firewall support?

GlassWire Firewall supports 11 languages, including English, French, German, Italian, Japanese, and others.

What company sizes and industries is GlassWire Firewall the best fit for?

GlassWire Firewall is most represented among small-business users, with mid-market teams also represented. The industries span several areas, with network and IT-related organizations among the recurring segments.
  • Small businesses: The most prominent company-size segment.
  • Mid-market teams: Also represented across the experience data.
  • Network and IT-related organizations: Includes computer networking, information technology, and computer security settings.

What customer support options does GlassWire Firewall provide, and how do users find the overall support experience?

GlassWire Firewall support is available through chat, phone support, and email or help desk. The support experience appears adequate overall, with a positive account of efficient, responsive technical assistance.

Is GlassWire Firewall considered safe and secure for handling data?

GlassWire Firewall helps users see network activity, receive alerts about unusual connections, and block traffic they consider unwanted, giving them more control over potential network threats. It is best viewed as a network monitoring and firewall layer rather than a replacement for antivirus software; users also note that alerts can sometimes require investigation and the product does not remove threats itself.

GlassWire Firewall Reviews (50)

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GlassWire Firewall Reviews (50)

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4.6
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Verified User in Marketing and Advertising
AM
Verified User in Marketing and Advertising
Small-Business (50 or fewer emp.)
"Secure and Very Effective Tool!"
5/5
What do you like best about GlassWire Firewall?

This tool easily detects spyware, malware, and other malicious activity being performed on your machine or network.

Being able to be alerted of when new unknown devices join your WiFi has been very beneficial. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

If you aren't confident in setting up the tool and configuring security settings it may be a little confusing. Review collected by and hosted on G2.com.

Verified User in Health, Wellness and Fitness
UH
Verified User in Health, Wellness and Fitness
Small-Business (50 or fewer emp.)
"Great but not the best"
4.5/5
What do you like best about GlassWire Firewall?

I have found that the FireWall built into the Max OS has been the best and it is free. This comes in at a close second though. It’s possible for bigger companies that it would worth the cost. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

Apple gives you a great firewall for free. And when you’re a small business, sometimes that makes all difference. Review collected by and hosted on G2.com.

Verified User in Health, Wellness and Fitness
UH
Verified User in Health, Wellness and Fitness
Mid-Market (51-1000 emp.)
"Firewall review"
5/5
What do you like best about GlassWire Firewall?

It’s ability to block fishing sites and able to safely protect our client data Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

Nothing at this point really. Everything looks great. Review collected by and hosted on G2.com.

Verified User in Business Supplies and Equipment
UB
Verified User in Business Supplies and Equipment
Small-Business (50 or fewer emp.)
"Amazing yet complicated"
4/5
What do you like best about GlassWire Firewall?

The design of the presentation of network traffic is lovely and has proficient notifications for network security flags and activity. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

Software is expensive, and a little complicated for the beginner, requiring more expertise than initially expected. Review collected by and hosted on G2.com.

Verified User in Education Management
UE
Verified User in Education Management
Mid-Market (51-1000 emp.)
"Excellent firewall"
5/5
What do you like best about GlassWire Firewall?

It’s a fantastic and easy to use firewall! I highly recommend it Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

It is free so it occasionally has glitches here and there but with frequent updates it works flawless most of the time Review collected by and hosted on G2.com.

Verified User in Education Management
UE
Verified User in Education Management
Mid-Market (51-1000 emp.)
"WiredGlass"
3/5
What do you like best about GlassWire Firewall?

I like that my devices are more secure and protected from threats. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

Not much. Overall the user interface is easy to follow and use. Review collected by and hosted on G2.com.

Alastair 'Presario' H.
AH
Alastair 'Presario' H.
Owner
Internet
Small-Business (50 or fewer emp.)
"Simple but powerful Firewall protection"
5/5
What do you like best about GlassWire Firewall?

The implementation time is amazingly short, the ability to customize the basic features is straightforward, and the "Ask To Connect" portion of the Firewall is amazing. I love that I can look at the "Things" tab to quickly see what devices are connected to my network, and when they were first seen. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

Glasswire likes to "push" it's new updates through annoying pop-ups. This would typically be a good thing, except for the fact that their updates sometimes break things that were working fine. Review collected by and hosted on G2.com.

Daryl W.
DW
Daryl W.
Founder/Owner
Small-Business (50 or fewer emp.)
"Network Security Simplified"
5/5
What do you like best about GlassWire Firewall?

I was recommended to GlassWire through popular YouTuber "Barnacules Nerdgasm" aka Jerry Berg who is a computer expert who has previously worked as a programmer and technician at Microsoft for 15 years. He is no joke when it comes to network security, so his seal of approval of GlassWire sold me to get the software.

I have been more than happy with the software and it's detailed network analytics. The very instant a program accesses my network I get a notification which is great. I can also block said program from my network right from GlassWire's built in Firewall.

The detailed activity graph is also very useful to see how much data is being used across the network and it shows how much data all open apps are using through GlassWire's Usage tab.

GlassWire's "Lock Down Mode" also allows you to block all network connectivity. This is useful if you must leave your computer on while you are away from your computer. This stops viruses and even unwanted people, if they so happen to access your computer, from using your network. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

No ability to stop threats within GlassWire. But any PC expert knows to have dedicated anti-virus software. But having that ability within GlassWire would of been a plus. Review collected by and hosted on G2.com.

FP
Frank P.
Desarrollador web
Program Development
Small-Business (50 or fewer emp.)
"GlassWire, nice and easy to check your network"
5/5
What do you like best about GlassWire Firewall?

It is easy to use, it is intuitive, and warns you of your network activity graphically. I did not know this software until a client asked me to check it out, because he was concerned with his network usage, So I tried it, it helped me solved a problem I had with my internet connection going slow. Checking the network activity I found I had the infamous TenCent software installed, some how it bypassed my firewall, antimalware and antivirus. After I eliminated it everything went back to normal. Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

It is a little heavy on memory, Within the program you will be able to detect and/or identify suspicious activity, unfortunately you do not have the option of eliminate the threat ant stop it but not eliminate it. Review collected by and hosted on G2.com.

AN
Amir N.
Product Development Manager
Mid-Market (51-1000 emp.)
"Great network security tool"
4.5/5
What do you like best about GlassWire Firewall?

This relatively new network traffic monitoring software does a very good job monitoring your network activity.

I've been using it since the stable beta stages and it is now my favorite network monitoring app.

The user interface is clean and clear with a modern look and feel to it.

It does not abuse popup-messages and all the information it provides is unobtrusive and easy to follow or act on.

Very easy to view the traffic and block it if needed

You get per-app control and network usage information

Notification when an installed software version changes.

It is free for basic usage while paid versions available with extra features Review collected by and hosted on G2.com.

What do you dislike about GlassWire Firewall?

May not be suited for a beginner user who wants a set-it and forget-it application.

It may be a little too demanding on computer resources, if you are using a low spec machine.

Cannot export logs, only view the activity in the app interface

New devices detection only available on paid version.

Some may not like that you only get notification the first time an app using the network (not me…)

The single PC license could be cheaper. Review collected by and hosted on G2.com.