List of 7 Best Open Source Antivirus Softwares

Every one of us who is fed up with unnecessary pop-ups, spammed notifications, viruses, malware, and bugs, is always in need of some best open source antivirus software. 

See our list of top open-source PDF editors.

Also, for developers, check out our list of best open source python frameworks.

If you are also one of those, then congratulations, you have reached your destination because we, in this article, will explore some best open-source antivirus programs from which you can choose yours easily. After all, security is the most important thing to anyone on this earth, and it definitely should be. 

So without getting late, let’s get straight into the list of our best open source antivirus.

List of Top 7 Best Open source Antivirus

Here is a list of some top-notch open-source antiviruses that are meant to protect your devices from malware and viruses.

1. Armadillo Antivirus

Armadillo is an open-source antivirus program meant to save your computer devices from viruses and ensure strong protection against them. Another good thing about it is that the software is compatible with both Windows and Linux operating systems. So you can use it openly within both the Operating systems. 

The program is integrated with analytical architecture that warmly welcomes new algorithm to analyze new anti-viral techniques. In addition, Armadillo Antivirus is considered to be the most secure system that uses the ClamAV engine for securing data.

Coming to the user interface, we are proud to say that it is simple to use and easy to get started with. What can be more than that?


  • Signature-based virus detection
  • Compatible with Windows and Linux
  • Open-source software.
  • Advanced architecture for easy integration with new detective algorithms.
  • Simple to use and learn how to use.
  • Real-time scanning and protection.


  • Customer support is not so good

2. ClamAV Antivirus

ClamAV is another excellent antivirus software that is free to use and open source. Users of this software are all delighted and satisfied as it is apt to provide you with complete security from viruses, malware, and Trojans.

Not only this, but ClamAV is also good at scanning emails and detecting viruses in file attachments before the user downloads them. This great antivirus operates on the command line but offers limited features somehow. 

In short, ClamAV offers a whole operation on email gateways to protect them against viruses, and you can consider it as a reliable option for your desktops.


  • Free and open source
  • No terms and conditions and no monthly subscription with long bills.
  • Perfect security line for email gateways.
  • Compatible with multiple Operating systems
  • Simple UI.
  • Best for beginners


  • Mainly for email gateways
  • Poor support service.

3. Moon Secure Antivirus

Moon Secure antivirus software is the most simple to use and free program that offers satisfactory protection to your computer device against malware.

It uses the ClamAV engine to perform virus detection. It gives you real-time updates so that you can take the necessary steps to protect your device against spammy content.

Another noteworthy feature of Moon Secure Antivirus software is that it offers multiple other products, such as MoonVAS and Moon Secure Mobilizer, to serve you extra.

It offers you both free and premium versions, but it’s completely ok to go with the free version if you can’t afford the paid one as there is a bit of difference between free and paid. So what can be more than a reliable security service for your databases?


  • The reliable antivirus program
  • It runs perfectly well on XP Pro
  • Easy to install
  • Great GUI


  • It comes with Trojan Horse

4. Bitdefender Free Anti Virus Software 

If you are looking for an antivirus that is lightweight and free to use, Bitdefender is developed only for you. The award-winning antivirus program is free to use and open source, thus, available for all.

Being lightweight, it requires low memory and downloads with ultra-fast speed. Not only this, it’s hyper-fast in detecting viruses and protecting your computer from malware. It scans the computer within no time and catches all the issues within seconds.

The main thing to consider about this program is that it doesn’t harm your computer in any way. Isn’t it something extraordinary?


  • Award-winning antivirus
  • Highly-rated 
  • Awesome banking protection
  • Perfect for PCs and laptops 
  • No adverse effects on the entire system
  • Impressive functionality 
  • Network threat protection


  • VPN required

5. ClamWin Antivirus

ClamWin is considered to be a heart-winning antivirus program by all users. It is a free and open-source antivirus that is developed particularly for windows. The owner ClamWin Pty Ltd claims it to be the most potent security engine developed under GNU general public license. 

Unlike older versions, newer ones are pretty fast and detect spam and viruses within seconds. Also, it is much easier to install and comes with open source code. More than 65 thousand users currently use its extension and are highly satisfied with its service. 


  • Best antivirus for Windows 
  • Portable and lightweight
  • Easy to install and use
  • Easy solution for PCs 
  • Free and open source
  • Adequate protection against viruses. 


  • Nothing Found. 

6. OpenAntiVirus Project

OpenAntiVirus Project is again a widely used antivirus project for computers to protect them against every type of malware. It is most efficient in scanning viruses as it uses VirusHammer for this purpose. 

Also, it allows its users to contribute to several projects and throw their suggestions to make things even better than ever before. 

In short, the OpenAntiVirus Project is all set to provide its users an entire package of scalability, efficiency, reliable protection, and complete satisfaction.

Forget about viruses until this software is installed and running on your computer. Also, it is a perfect choice for those who are looking for free agile-based project management software.


  • Kims with open source code
  • Free to use without any monthly fee
  • Allows contribution to its users
  • Easy to install 
  • Praiseworthy speed and performance.
  • Admirable scalability and effectiveness
  • Compatible with almost all operating systems
  • Easy to understand documentation


  • It is not mobile-friendly
  • Features are limited
  • Resource management is an all-time hassle.

7. Comodo Firewall Antivirus

Comodo Firewall is a free and open-source antivirus for those who are using Windows 7, 8, and 10. It can provide your computer with good protection from every kind of malware, virus, adware, rootkit, and Trojan. You can use it for any of your PC devices and start scanning it against viruses right after installing this excellent antivirus software.

Usually, free tools come with limited features, but this one has set records for being highly featured. So it’s better to have it for ensuring complete protection of your devices.


  • High in features
  • Best firewall against spammy links and viruses.
  • Uses minimum system resources
  • HIPS modules
  • Easy to configure
  • Impressive GUI
  • User-friendly interface


  • Slow to no updates
  • Not for beginners
  • Bugs are reported.

Wrap Up

We must conclude by saying that protection is all that matters to everyone in this world. With this, digital media also demands high protection in every way.

That’s the reason we have penned down some free-to-use and open-source antivirus software to help you secure your devices with viruses and malware more like a pro.

Whatever your requirements are, you will find your ideal open-source antivirus in the list we presented above. 

Just go through it and start using your favorite software immediately. Try these antivirus programs all one by one if you can still not decide which one is best.

Don’t forget to share with us which software did you find the best among all. We wait to see you in the comment section.