5 Best Free Antivirus Software to Use in 2025
Last Updated on September 15, 2025 by Editorial
With cyber threats evolving, finding reliable antivirus software is crucial. Fortunately, several leading cybersecurity companies offer the best free antivirus software, giving you solid protection without costing a dime.
In this article, we’ll explore five of the best anti virus software options you can use for free. It will focus on options like Bitdefender, TotalAV, Avira, AVG Antivirus, and Malwarebytes. Each of these tools brings something unique to the table, and we took the time to test them.
So read this to the end to learn more about free antiviruses and why they’re necessary.
The Best Free Antivirus You Can Try Out
Here are the best free antivirus options you can use for your devices today.
1. Bitdefender Antivirus Free Edition
| PROS |
|---|
| Excellent real-time protection |
| Minimal impact on system performance |
| Easy to install and use |
| CONS |
|---|
| Limited customization options |
| Some advanced features are behind a paywall |
Bitdefender launched in 2001, has grown into one of the most trusted names in cybersecurity.
The Bitdefender Antivirus Free Edition provides robust protection with a lightweight footprint, ideal for users seeking effective, no-nonsense security without complexity.
It also doubles up as an antivirus app for Android, iOS, tablets and other mobile devices.
Features
Bitdefender Antivirus Free Edition offers comprehensive features for a free solution. Some of the notable ones include the following.
- Real-Time Threat Detection: This constantly monitors your system, identifying and neutralizing malware before it can cause damage.
- Advanced Threat Defense: This feature uses behavioral detection to watch for suspicious activity in real-time, ensuring even the most recent threats are blocked.
- Web Protection: This is another feature that safeguards your online activity by blocking malicious websites and preventing phishing attempts.
- Anti-Fraud: Bitdefender has an anti-fraud system that alerts you if you visit a site attempting to steal your personal data.
- Auto Pilot Mode: Lastly, there’s an auto pilot mode that offers tailored security recommendations based on your system usage, while Low System Impact ensures your device stays fast and responsive.
Ease of Use
This best free antivirus is known for its simplicity. The setup process is quick, and the software is easy to navigate.
With a minimalistic interface, it’s perfect for users who want strong protection without getting bogged down in settings.
This free and good antivirus is compatible with Windows, macOS, Android, and iOS, making it a versatile option for various devices.
Independent AV-TEST Results
In AV-TEST evaluations, this top rated free antivirus has consistently scored top marks, demonstrating excellent protection against both widespread and zero-day malware.
It also excels in real-time protection, effectively blocking threats as they appear. The software’s performance in these tests highlights its reliability as a free antivirus option.
2. TotalAV Free Antivirus
| PROS |
|---|
| Comprehensive protection and optimization features |
| User-friendly interface |
| Effective anti-phishing tools |
| CONS |
|---|
| Some features prompt upgrades to the premium version |
| Occasionally pushes Aads |
Next on our list of the best antivirus software is TotalAV. Launched in 2016, TotalAV quickly gained popularity for its comprehensive security tools.
It’s free antivirus version offers solid protection combined with additional system optimization features. It’s an ideal choice for users who want more than just malware defense.
Features
This top rated free antivirus software packs a punch with the following features.
- Malware Detection: TotalAV is capable of efficiently identifying and removing viruses, spyware, and other malicious software.
- Anti-Phishing Protection: This feature prevents you from accessing malicious websites, ensuring your online safety.
- System Optimization Tools: This is for cleaning up junk files, helping your device run smoothly.
- Browser Cleanup: This is a feature that removes unnecessary browser extensions and cookies, enhancing your browsing experience.
- Real-Time Security Updates: TotalVB receives real-time updates, ensuring you’re protected against the latest threats.
Ease of Use
TotalAV’s user-friendly design makes it easy to install and navigate, even for those not tech-savvy.
This free and good antivirus provides clear instructions and offers a guided setup process. Its dashboard is well-organized, with all features easily accessible.
TotalAV supports Windows, macOS, Android, and iOS. This wide range of compatibility is one of the reasons TotalAV is among the best free antivirus.
Independent AV-TEST Results
TotalAV has performed admirably in AV-TEST evaluations, providing solid protection against a wide range of malware.
It scored well in detecting both known and emerging threats, with a low rate of false positives.
The software’s real-time protection feature also received favorable reviews, making it a reliable choice for those seeking free antivirus protection.
3. Avira Free Security
| PROS |
|---|
| Includes privacy and performance tools |
| High malware detection accuracy |
| Clean, user-friendly interface |
| CONS |
|---|
| Free VPN has limited data |
| Frequent pop-ups for premium features |
Avira, established in 1986, is a great free antivirus and one of the pioneers in the antivirus industry.
The Avira Free Security is one of the best free antivirus programs that combines traditional antivirus protection with modern privacy tools.
This makes it an excellent all-around choice for users who value both security and privacy.
Features
As one of the best freeware antivirus programs, Avira Free Security offers the following features.
- Real-Time Protection: This ensures the system is continuously monitored, with malware getting blocked before it can harm your system.
- Free VPN Service: Avira provides a free VPN service that offers a limited amount of secure browsing data, perfect for protecting your online activity.
- Software Updater: This ensures that your applications are always up-to-date, patching potential security holes before they can be exploited.
- Password Manager: This feature helps you create and store strong passwords securely.
- Privacy Settings Optimizer: A specific feature that further enhances your online privacy by adjusting your system settings for maximum protection.
- Firewall Management: This simplifies the process of managing your device’s firewall settings, adding an extra layer of security.
Ease of Use
Avira’s installation is swift, and its interface is sleek and modern, making it easy for users to navigate.
All features offered by this best free antivirus are accessible from a centralized dashboard, which is intuitive and straightforward.
Avira is compatible with Windows, macOS, Android, and iOS, providing comprehensive coverage across different devices.
Independent AV-TEST Results
In AV-TEST results, Avira has consistently achieved high scores, particularly in malware detection and protection against zero-day threats.
The software’s ability to block malware while maintaining a low false-positive rate makes it a top contender in the free antivirus category.
Avira’s performance is also commendable, with minimal impact on system resources.
4. AVG Antivirus Free
| PROS |
|---|
| Robust protection features |
| Easy-to-use interface |
| Regular updates ensure ongoing protection |
| CONS |
|---|
| Some features require a premium subscription |
| Installation may include prompts for additional AVG products |
AVG was founded and released in 1991 and is a top rated free antivirus offering a powerful free antivirus solution.
Known for its comprehensive security features, AVG Antivirus Free ranks high among the best free antivirus software.
It provides solid protection without overwhelming users with unnecessary complexity.
Features
Here are some of the AVG Antivirus Free features worth your attention.
- Comprehensive Malware Protection: The main purpose of this feature is to guard your system against viruses, spyware, and ransomware.
- Email Shield: This scans incoming and outgoing emails for malicious attachments, ensuring your communications remain secure.
- Web & Link Protection: This feature checks websites and links, blocking those that pose a phishing risk.
- File Shredder: This feature securely deletes sensitive files, making them unrecoverable by dangerous hackers.
- Behavior Shield: This option monitors the behavior of software on your device, blocking suspicious activity before it becomes a threat.
Ease of Use
AVG is designed with user convenience in mind. The installation process is quick, and the interface is straightforward, making it easy to access and manage the software’s features.
Plus, AVG Antivirus Free is compatible with Windows, macOS, Android, and iOS, providing protection across a wide range of devices.
Independent AV-TEST Results
As one of the best free virus protection software, AVG consistently performs well in AV-TEST reports. This is especially true when it comes to blocking malware and providing real-time protection.
The software has been noted for its ability to detect and prevent both known and emerging threats, with a minimal impact on system performance.
AVG’s low rate of false positives further underscores its reliability as a free antivirus option.
5. Malwarebytes Free
| PROS |
|---|
| Excellent for removing existing malware |
| Easy to use with customizable scans |
| Minimal system impact during scans |
| CONS |
|---|
| Limited real-time protection in the free version |
| Advanced features are available only in the paid version |
Wrapping up our best freeware antivirus list is Malwarebytes. This antivirus was launched in 2006, initially gaining fame as a powerful malware removal tool.
While it appears in our list of the best free antivirus software, the free version of Malwarebytes lacks real-time protection.
This top rated free antivirus mostly excels at identifying and removing existing threats, making it an essential tool for cleaning infected systems.
Features
This top rated free antivirus software offers the following features.
- Malware and Spyware Removal, providing thorough scans that effectively detect and eliminate malicious software.
- Adware Cleanup feature helps remove annoying adware and other unwanted programs that slow down your system.
- Rootkit Detection, which targets deeply embedded rootkits that are often hard to remove.
- Threat Scan Mode performs comprehensive scans of your system, ensuring no stone is left unturned.
- Customizable Scan Options: This lets you tailor the scanning process to the specific needs of the device you wish to protect.
Ease of Use
Malwarebytes is easy to install and use, with a clean and simple interface. Navigating through its features is straightforward, even for those with minimal tech experience.
This antivirus software is compatible with Windows, macOS, Android, and iOS, making it a versatile tool for various devices.
Independent AV-TEST Results
In AV-TEST evaluations, this great free antivirus has performed well, particularly in the removal of existing malware infections.
While the free version lacks real-time protection, its on-demand scanning capabilities are among the best, making it a reliable choice for cleaning infected systems.
The software has a low false-positive rate, adding to its credibility compared to the other free antiviruses.
Factors to Consider When Choosing the Best Free Antivirus
Selecting the best free antivirus software is crucial to ensuring your device’s security without spending a dime.
But with so many options out there, how do you make the best choice? Here are the key factors to consider when choosing the best free anti viruses.
- Protection Features: The primary role of antivirus software is to protect your device from malware, viruses, and other online threats. Look for the best free virus protection software that offers comprehensive protection, including real-time scanning, anti-phishing, and web protection.
- Ease of Use: Your antivirus software should be easy to install and navigate, even for those who aren’t tech-savvy. Consider the best free antivirus that offers automatic updates and scans, so you don’t have to worry about managing these tasks manually.
- System Performance: An antivirus that heavily impacts your device’s performance can be frustrating. Choose the best free antivirus known for being lightweight and running efficiently in the background. This way, you get solid protection without sacrificing your device’s speed and responsiveness.
- Compatibility: Ensure the antivirus software is compatible with your operating system, whether it’s Windows, macOS, Android, or iOS. The best free antivirus offers cross-platform support, allowing you to secure multiple devices with one solution, which is ideal if you use various gadgets.
- Independent Test Results: Look at how the best free antivirus performs in independent tests, like those from AV-TEST or AV-Comparatives. These evaluations show how well the software detects and blocks threats and its impact on system performance.
- Privacy and Data Collection: Free antivirus software often comes with a trade-off in the form of data collection. Some providers collect usage data to improve their services or generate revenue. It’s important to first understand the privacy policy offered by the best free antivirus.
- Upgrade Options: While the best free antivirus software can offer solid protection, you might eventually want to upgrade to a paid version for additional features.
Wrapping Up
Choosing the best free virus protection software is key to keeping your devices secure without breaking the bank.
Each of the best free antivirus options in this list offers unique strengths. Whether it’s Bitdefender’s top-notch real-time protection, TotalAV’s system optimization tools, or Malwarebytes’ excellent malware removal capabilities.
Consider your specific needs to choose the best free antiviruses software that will keep you safe.
FAQ
Can a free antivirus really protect my computer?
Yes, it totally can—as long as you stick with trusted names. Many free antivirus programs use the same basic tech as their paid versions, just with fewer extras.
They’re great for everyday protection, like blocking viruses, stopping weird downloads, and catching sketchy websites before they mess things up.
What’s the catch with free antivirus software?
Usually, the main trade-off is fewer features. Most of the great free antivirus options might skip stuff like a VPN, identity theft protection, or advanced firewalls.
Some also show ads or remind you (a lot) to upgrade. But if you’re just looking to keep viruses and malware out, most free ones do the job just fine.
Do I still need an antivirus if I’m careful online?
Even if you never click weird links or download anything shady, threats can still sneak in, like through fake updates or infected ads. Think of antivirus like a seatbelt: you hope you won’t need it, but you’re glad it’s there when something unexpected happens.
Will a free antivirus slow down my computer?
Some can, but the best free anti viruses keep things light and barely noticeable. If your laptop feels like it’s running through molasses after installing one, it’s worth trying a different one. Plenty of free options are quick and easy on your system.
How often do free antivirus programs update?
Most of best freeware antivirus programs update daily, or even several times a day, to keep up with new threats. Just make sure automatic updates are turned on. You don’t have to do anything fancy; they’ll usually take care of it in the background without bugging you.
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