Best Free Firewalls For Your Windows PC

Best Free Firewalls For Your Windows PC

In today’s digital age, where cyber threats are becoming more sophisticated and frequent, a firewall is a crucial security system on your Windows PC. It acts as a barrier between your computer and the Internet, blocking any unauthorized access to your system. It effectively inspects incoming and outgoing traffic using a set of rules to identify and block threats. While Windows does come with its own built-in firewall, it may not provide the solid protection every user needs. Luckily, there are plenty of free firewall options available for Windows PC users. In this article, we’ll be discussing the best ones! 

Top Software Reviews Rating
5.Comodo Firewall
8.AVS Firewall
9.Windows Defender
10.Ashampoo Firewall

Why use Firewall Software?

If you are new to the concept, you might be wondering why to configure a firewall in a computer.

Firewalls are an essential component of any computer security setup. They help protect your system against malware, hackers, and unauthorized access by monitoring and controlling incoming and outgoing network traffic. Many users are opting for third-party firewall software these days, to add an extra layer of protection. We’ve curated a dedicated list of reliable options available in the market. 

But before we go ahead with our list let us take a look at some key points related to Free firewalls. While free firewalls can provide some level of protection, there are some limitations to be aware of. Here are a few common limitations of free firewalls:

  • Limited features: Free firewall software for Windows 11/10 computer often come with limited features compared to paid firewalls. This may include things like fewer customization options or less advanced threat detection and prevention capabilities.
  • No technical support: When you use a free firewall, you usually won’t have access to technical support if something goes wrong. This means you’ll be responsible for troubleshooting any issues on your own.
  • Advertisements: Some free firewalls are supported by advertisements, which can be distracting and may even slow down your computer.
  • Potentially less effective: While some free firewalls are effective at blocking certain types of threats, they may need to be more comprehensive and up-to-date than paid firewalls. This means that some types of attacks may still be able to get through.
  • Limited compatibility: Some free firewalls may not be compatible with all operating systems or hardware configurations, which can be a problem if you’re using an older or less common system.

Best Free Firewall For Windows 11/10 (2023)

1. GlassWire

Price – Free

Version – 3.3.495

Compatibility – Windows XP/Vista/7/8/8.1/10/11 (32 Bit or 64 Bit)


GlassWire Free Firewall is a visually appealing firewall that provides both inbound and outbound protection. It has a dedicated feature called “Network Monitor,” which can show you which apps or programs are using your network connection and how much data they’re using.

While GlassWire Free Firewall is a strong option for users who want a visually appealing firewall with advanced features, it can be resource-intensive and may slow down your computer. Additionally, the free version does come with some limitations, such as a limited history of network activity.

  • Eye-catching, versatile, and expertly crafted representations of network activity and consumption.
  • Seamless management of Windows Firewall settings.
  • Alerts for security incidents and other network-related occurrences.

  • Not every function you see is available for free.
  • One cannot instantly block every program.

Get it from here.

2. TinyWall

Price – Free

Version – 3.3

Compatibility – AMD(not ARM)/Intel Windows 11 /10/ 8/ 7 Or with Windows Server 2019/ 2016/ 2012 R2.


TinyWall is a lightweight free firewall software that is easy to use and unobtrusive. It works by blocking all incoming and outgoing connections by default and allows users to create exceptions for certain apps or programs. TinyWall also has a feature called “Automatic Learning Mode,” which can automatically create exceptions for programs that are frequently used.

One downside of TinyWall is that it doesn’t offer as many advanced features as some of the other firewalls on this list. However, for users who want a simple and easy-to-use firewall that doesn’t take up a lot of resources, TinyWall is a great option.

  • No intrusive pop-up questions.
  • It occupies less than 2 MB of room on your hard drive and is small.
  • In auto learn mode, adjustments can be made.

  • No support for Windows XP or Vista.
  • No defense against exploit-based attacks.

Get it from here.

3. NetDefender

Price – Free

Version – 1.5 Beta 1

Compatibility – Windows XP/2000/7/8 (32 Bit or 64 Bit)


Quite like Windows Defender Firewall, NetDefender Firewall provides basic protection for your Windows PC. It offers a simple and easy-to-use interface with features such as inbound and outbound traffic filtering, port blocking, and packet inspection. It does not consume too many system resources, resulting in faster performance. Additionally, it offers a “Stealth Mode” feature that makes your computer invisible to potential hackers.

Another benefit is that NetDefender Firewall is open-source, which means its source code is available to the public, and anyone can modify and distribute it freely. This enhances its security because vulnerabilities are more easily identified and addressed by the community.

  • All incoming traffic is blocked with a simple click.
  • Fast and simple installation.

  • The developers no longer maintain the free version.
  • Some functions could potentially be glitchy.

Get it here.

4. ZoneAlarm

Price – Free

Version –

Compatibility – Windows 7/10 (32 Bit or 64 Bit)


ZoneAlarm Free Firewall is another great firewall for Windows computer. It provides more advanced protection than Windows Defender Firewall, including a two-way firewall that monitors both incoming and outgoing traffic. ZoneAlarm also has a feature called “Application Control,” which allows users to control which apps are allowed to connect to the internet.

When you install this software, you’ll have the option to choose between two different security types: Auto Learn or Max Security. The Auto Learn option adjusts the settings based on your behavior, while the Max Security option allows you to control every application setting manually.

  • 5GB of free online storage is included.
  • Specialized, powerful malware defense.
  • Connects to numerous additional security tools.

  • No defense against exploit-based attacks.
  • No defense against malicious URLs.

Get it from here.

5. Comodo Firewall

Price – Free, Comodo Firewall + Antivirus $29.99/Yr

Latest Version –

Compatibility – Windows XP 32 Bit, Windows Vista, 7/8/8.1/10/11 (32 Bit or 64 Bit)

Comodo Firewall

Comodo Firewall is a popular free firewall that offers powerful protection against malware, viruses, and other cyber threats. It has a user-friendly interface and customizable settings to meet the needs of different users. Comodo Firewall also includes a feature called “Defense+” that uses advanced behavioral analysis to monitor and block suspicious activities.

An AD blocker, personalized DNS servers, and a virtual booth are some excellent features offered by Comodo Firewall. This makes it simple to prevent any program from accessing or leaving your network which helps you safeguard your network. Additionally, any suspicious files, folders, or programs that could endanger your system will be promptly alerted to you.

  • For those who are new to cybersecurity, reasonably affordable and simple.
  • Consumes minimal system resources.
  • Complements the Comodo Dragon private browser well.

  • No defense against exploit-based attacks.
  • Attempts to modify your search engine and homepage unless you uncheck that choice during setup.

Get it from here.

6. PeerBlock

Price – Free

Version – 1.2

Compatibility –  Windows XP/Vista/7/8//10/11 (32 Bit or 64 Bit)


PeerBlock is a free firewall that focuses on blocking unwanted traffic from specific IP addresses or ranges. It uses various blocklists that are regularly updated to block known threats. PeerBlock also includes the ability to create custom blocklists and allows users to whitelist specific IP addresses.

One of the features of this firewall software is the ability to block IP addresses from specific locations using premade lists. These lists may include P2P, educational, ads, business ISPs, or spyware. If you so choose, you can even impose restrictions on entire nations or organizations. 

  • Adaptable user design interface.
  • Blocks the majority of online ads and pop-ups.
  • Huge blacklist IP address collection, provided by I-Blocklist.

  • It requires some basic technical expertise to start up.
  • PeerBlock is no longer updated, even though I-Blocklist is.

Get it from here. 

7. OpenDNS

Price – Free

Version – N/A

Compatibility – Windows XP/Vista/7/8/8.1/10/11 (32 Bit or 64 Bit)


OpenDNS Home is a cloud-based firewall that protects against phishing and malware attacks. It works by intercepting your DNS requests and blocking any malicious websites. OpenDNS Home also includes parental controls and the ability to whitelist specific websites. It provides comprehensive protection against cyber-attacks, offering an all-in-one solution that includes antivirus, anti-theft, and numerous other security features.

Its easy-to-use interface and customizable settings make it an ideal choice for individuals and businesses looking for a reliable and effective firewall solution.

  • Due to this system’s cloud-based nature, no program installation is necessary.
  • Additionally, it will defend you from criminal practices like attacks using DDoS.
  • All of your home’s internet-connected gadgets, such as DVRs, smart TVs, smartphones, tablets, and computers are protected by this firewall.

  • Every bit of data travels within the OpenDNS network.

Get it here

8. AVS Firewall

Price – Free

Version – 2.1

Compatibility – Windows XP/Vista/7/8/10 (32 Bit or 64 Bit)

AVS Firewall

AVS Firewall is a reliable and effective firewall software that provides comprehensive protection against cyber threats. Some of the benefits of AVS Firewall include real-time monitoring, network activity logging, and the ability to block unauthorized access. Additionally, it has a built-in application control feature that allows you to control which programs can access the internet.

AVS Firewall comes with a Parent Control feature that allows you to limit access to specific websites. To ensure that only authorized changes are made, you can password-protect this section of the firewall. Filters out unwanted advertisements so you can browse the web without interruptions.

  • Available in a variety of languages.
  • Lots of customization choices, and intuitive interface.
  • Provides access to in-depth reports on Internet behavior.

  • No significant updates for a long period.
  • They install a registry cleaner during installation unless you specifically uncheck it.

Get it here.

9. Windows Defender

Price – Free

Version – N/A

Compatibility – Windows XP and later

Windows Defender

If your computer is running a Windows version newer than XP, it already includes a built-in firewall that is completely free of charge. This firewall, which has been named Windows Defender since Windows 10, is one component of a collection of security utilities that come standard with every Windows installation. By default, the firewall should already be activated and running unless you have made any alterations to its settings.

Although you may use a different firewall, Microsoft advises keeping the Defender firewall active. 

  • Already incorporated into Windows.
  • Low incidence of false positives.
  • Superior detection rates compared to some paid antivirus software.

  • Absence of extra features.
  • Not many configuration choices.

Get it here. 

10. Ashampoo Firewall

Price – Free

Version – 1.20

Compatibility – Windows XP and Windows 2000

Ashampoo Firewall

Upon the initial launch of Ashampoo FireWall, users are presented with the choice of Easy Mode or Expert Mode to configure which programs have network access. The program’s Learning Mode is a great feature as it assumes that all connections should be blocked. We appreciate the convenience of the Block All option in Ashampoo FireWall, which can be activated with a single click to instantly stop all incoming and outgoing connections.

In order to utilize Ashampoo FireWall, a free license code must be obtained through a request process. The program is solely compatible with Windows XP and Windows 2000 operating systems, which is one of the factors contributing to its placement at the bottom of our list of recommended free firewalls.

  • Bundled with additional protection tools.
  • Ashampoo FireWall’s “Block All feature” disables all inbound and outgoing links.

  • Only consistently performs well with Windows 2000 and XP.
  • Fails breach tests repeatedly.

Get it here.

To Wrap This Up

A firewall on your Windows PC is essential for protecting your system from cyber threats. However, it’s important to research and choose a free firewall that meets your specific needs and offers the level of protection you’re looking for. Our recommendation is Comodo Firewall. It has a user-friendly interface and customizable settings to meet the needs of different users. Comodo Firewall also includes a feature called “Defense+” that uses advanced behavioral analysis to monitor and block suspicious activities.

It’s important to choose a reputable free firewall from a trusted source. Additionally, even with a firewall in place, it’s important to practice safe browsing habits and keep your computer and software up to date to ensure maximum security.

Frequently Asked Questions: 

Q1. What Is A Firewall?

A firewall is a network security measure that stops unwanted users from accessing a network. It can be a piece of hardware or software that filters the inbound and outgoing data within a private network in accordance with a predetermined set of guidelines to detect and stop cyberattacks.

Q2. Are Free Firewalls Safe?

Yes, free firewalls can be safe as long as they come from a reputable and trustworthy source. However, it’s important to note that not all free firewalls are completely reliable, and some may not provide the same level of protection as paid firewalls.

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