Best Free Firewall for Windows (2020)

Best Free Firewall for Windows (2020) 1

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Firewalls are a really good security layer that you can add for free to your Windows PC.

Windows already have a built-in Firewall, but if not updated is may not the best option.

So what is a firewall for Windows?

Do I really need a firewall on Windows?

In this article, I’m gonna tell you the best free Firewall options for your Windows PC.

According to Wikipedia, a personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy.

Typically it works as an application layer firewall.


Do I really need a Firewall?

Of course!

By using a Firewall along a good Anti-Malware Software you will be more protected.

The difference between Anti-Malware and Firewall

First, remember that both are really useful and important.

An Anti-Malware Software is an app that blocks and removes malware in the system.

A Firewall is an app that via security rules it blocks the bad connection to the internet.

I recommend to use both 🙂


Best Free Firewalls for Windows

Free Firewalls are actually a really good option.

You don’t really need to pay for a  Firewall.

Here is the top best Firewalls for Windows that really work.

1. Comodo Free Firewall

Comodo Free Firewall is one of the best firewalls you can install on Windows.

Comodo Free Firewall is completely free of cost.

Comodo Free Firewall has one of the biggest security rules on the market.

A really good option, but the only problem of the Comodo Free Firewall is that is may difficult to use.

Comodo Free Firewall is also not compatible with other Anti-Malware Software like Avast and Kaspersky.

2. GlassWire

GlassWire is the most beautiful and attractive firewall for Windows.

GlassWire interface is just beautiful and colorful.

In the interface you will see the current and past activity, to better understand the activity.

GlassWire will warn you about any changes to your Windows PC or apps that were related to Internet activity.

And it will also monitor your network and alert you about unknown devices trying to connect to the internet.

Its best feature is the presentation of detailed statistics of the network usage broken down by apps, IP/Host, and type of network traffic.

GlassWire also has a permission system that allow you to allow or block apps to connect to the internet.

3. Windows Defender

Windows 10 has a built-in firewall that works really well.

Enabled by default, Windows Defender Firewall is a really good firewall.

If you always update Windows, including Windows Defender updates, then I think it’s enough.

4. Avast Firewall

Avast has a built-in firewall that I really need to say that is a really good firewall.

Avast’s Firewall as said on the Avast website it protect against hackers and bad hosts.

If you have Avast installed on your Windows PC then you don’t have to install another firewall.

The only problem with Avast’s Firewall is that it needs to set up.

And it can be a bit difficult to use.


I hope I helped you find out a firewall option for you.

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Thanks for reading.

And I’ll see you next time.

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Jonathan Terreo
Writing for me is not only a necessity, but a passion. As a child I remember always reading and writing, always with a curiosity that seemed to have no limit. I also remember when my first computer fell into my hands. I still retain the same fascination for technology, the same curiosity.
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