Best Free Antivirus Software of December 2024
Updated October 28, 2024 at 4:03 am
Cybercrime continues to rise in 2024. According to an Ipsos poll conducted on behalf of Wells Fargo, 31% of Americans reported “being a victim of online financial fraud or cybercrime.”
The Center for Strategic and International Studies maintains an online timeline and lists significant cyber incidents. These include things such as the faulty software update from CrowdStrike that caused a global IT outage and created chaos for airlines and hospitals in July 2024, as well as the joint warning issued by Australia, the U.S., Canada, Japan and others against Chinese state-sponsored cyber activity.
According to Cybersecurity Ventures, the overall cost of cybercrime is estimated to be as high as $9.5 trillion in 2024. And, at this point, most of us have likely received at least a couple notices that our data was included in a breach. In light of all this, cybersecurity remains a concern for many internet users, with good reason.
Outside of using strong passwords and multi-factor authentication, keeping your software updated and refraining from clicking on links in emails, the best free antivirus software can help thwart many kinds of cyberattacks. Whether you have a brand-new device or are just in need of a security update, here are the best free antivirus software options available.
Methodology To compile this list, we reviewed the top services on the market, compared the specs and features and created a short list of the top Free Antivirus Software. Then, we used product descriptions, reviews, ratings and hands-on experience to find the best Free Antivirus Software for each category.
Our Picks - Best Overall: Avast
- Best Lightweight Software: AVG
- Best for Anti-Phishing Protection: Kaspersky
- Best for Malware Removal: Malwarebytes
- Best Software Performance: Norton
- Best for Remote Management: SOPHOS Home
- Best for Customized Protection: Trend Micro
- Best for Quick Scans: Webroot
- Best for Windows Users: Windows Microsoft Defender Antivirus
Free Antivirus Software Options
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9 Best Free Antivirus Software of 2024
Best Overall
Avast
Vault Verified
Why We Chose It
With over 30 years of cybersecurity experience, Avast earns high scores from independent lab tests. It combines AI cybersecurity with antivirus protection with a truly free download.
Key Features:
- 6-layer antivirus security
- Available for PC, Android and iOS
- Unlimited VPN
- Free mobile security
- Data leak alerts
Pros
- Real-time protection
- User-friendly
- Long-standing company
Cons
- Recently fined $16.5 million by the FTC over alleged sale of customer information to third parties
- Must upgrade for advanced features
- Lengthy installation
Best Lightweight Software
AVG
Vault Verified
Why We Chose It
AVG offers multi-layered protection that includes both spyware and malware protection for a well-rounded product. It is easy to use, in part due to real-time services that help you stay ahead of the curve.
Key Features:
- Real-time updates
- Firewall support
- Phishing protection
- Email Shield
- Windows, Android and iOS
Pros
- 24/7 scans
- Protection against Trojan horse malware
- Email notifications if hacked
Cons
- Not for commercial use
- Premium support costs extra
- Annual agreement
BEST FOR ANTI-PHISHING PROTECTION
Kaspersky
Vault Verified
Why We Chose It
Kaspersky offers a simple user dashboard to keep you in control of your device security, giving you easy access to tools like Stalkerware Detection and anti-ransomware protection. It comes with automatic updates, too, so you know your software is always running at its best.
Key Features
- Ransomware protection
- Stalkerware Detection
- Automatic updates
- Real-time analysis
- Windows, Android and iOS
Pros
- Super-reliable performance
- Free virus scan
- Several languages available
Cons
- Must upgrade for Mac
- No free firewall protection
- No Safe Web Browsing feature with free plan
Best for Malware Removal
Malwarebytes
Vault Verified
Why We Chose It
As the name suggests, Malwarebytes provides top-tier malware protection, including spyware and virus removal. It is able to detect threats that other services can’t, making it a well-rounded option when you are concerned about malware threats.
Key Features
- Spyware and adware protection
- Ransomware protection
- Trojan safeguards
- Business plan available
- Windows, Android, Mac and Chromebook with iPhone Ad Blocker
Pros
- 30-day Premium trial
- Extremely effective at removing malware
- Clean interface
Cons
- No firewall protection
- No real-time protection with free version
- Basic reporting
Best Software Performance
Norton
Vault Verified
Why We Chose It
In addition to its paid plans, Norton allows you to download a host of valuable tools that can make all the difference in your antivirus protection. Try the Norton Power Eraser to scan your device and remove any threats, as well as the Norton Bootable Recovery tool if your device is found to be infected.
Key Features
- Norton Power Eraser
- Norton Bootable Recovery Tool
- Complimentary privacy and anti-tracking scans
- Norton 360 for Gamers free trial
- VPN available with paid plans
Pros
- Regular updates
- Choice of free trial
- Free trial for paid plans
Cons
- Must download tools individually
- Can run on the slower side
- Subscription required for best features
Best for Remote Management
SOPHOS Home
Vault Verified
Why We Chose It
SOPHOS Home offers some of its best antivirus software for free, like its HitmanPro – Malware Removal Tool and Sophos Scan & Clean. There is remote management for your devices, too, so you’re never out of touch when there is a threat.
Key Features
- Deep learning threat prevention
- Ransomware and spyware detection
- Banking protection
- Parental Website Filtering
- Real-time alerts
Pros
- Remote management
- Firewall protection
- AI threat detection
Cons
- Linux firewall protection only
- Must subscribe to remove malware
- No VPN option
Best for Customized Protection
Trend Micro
Vault Verified
Why We Chose It
Trend Micro offers a suite of free tools that you can use to create your own custom antivirus software. Take advantage of exclusive tools using Trend Micro’s cloud-based Smart Protection Network and Mobile App Reputation technology.
Key Features
- Crypto Ransomware File Decryptor Tool
- HouseCall resolution tool
- HijackThis Open Source Utility
- Social media privacy tools
- Windows, Mac, Android, iOS and Chromebook
Pros
- Mobile security available
- User-friendly tools
- Free Password Manager
Cons
- Tools must be downloaded individually
- No firewall protection
- Can slow computer during scans
Best for QUICK SCANS
Webroot
Vault Verified
Why We Chose It
Webroot provides fantastic malware protection with easy online downloads and effective threat removal. If you like it enough to upgrade, there is a 14-day free trial to enjoy before you subscribe.
Key Features
- Identity theft protection
- Real-time anti-phishing
- Cloud-based updates
- Webroot Password Manager
- Leading encryption technology
Pros
- Super-fast scans
- Webroot Password Manager
- Quick installation
Cons
- Interface could use some updating
- Basic reporting
- No remote management
Best for Windows Users
Windows Microsoft Defender Antivirus
Vault Verified
Why We Chose It
Windows Microsoft Defender Antivirus comes included with Windows 11, making it the best antivirus free software for Windows users. Enjoy multi-faceted malware protection with identity theft monitoring for the whole family.
Key Features
- Malware protection
- Phishing protection
- VPN apps
- Microsoft Defender SmartScreen
- Windows Firewall
Pros
- Coverage for the family
- Continuous antivirus and anti-phishing scans
- Identity theft insurance
Cons
- Windows 11 only
- Minimal ransomware protection
- Safe web browsing feature limited to Microsoft browsers
What Is Antivirus Software?
Antivirus software is a type of security program that detects and removes harmful malware from your network and devices. It regularly scans your data to ensure it is not infected with any viruses or malware, while helping to prevent identity theft and fraud. It can also scan the dark web to protect your data and provide password encryption for your online accounts. Integrated tools can handle critical tasks for you, like scheduling scans and providing reports on the overall health of your computer. The best antivirus software can also help you avoid risky behaviors, like clicking bad links or visiting fraudulent websites.
What’s the Difference Between Free and Paid-For Antivirus Software?
| Antivirus Software Type | Reliability | Update Frequency | System Compatibility | Performance |
| Free | Mediocre performance | May not provide any updates | May be generalized to work with a variety of systems | Basic speeds and resources |
| Paid-For | Advanced protection | Generally includes regular updates | Detailed compatibility to work with your specific devices | Enhanced tools and features |
The best free antivirus software can be a great place to start when you want to protect your devices. Many programs offer malware protection and virus scanning for popular devices. However, you are likely to get more detailed features and tools with a paid version. This can include things like password managers, cloud storage and parental controls. Paid versions tend to offer more frequent updates than free antivirus software, which may not be updated as often as you need, and they can offer more detailed system availability so you can find exactly the right software for your specific device.
If you are looking for a free version, our picks for the best free antivirus software programs are a great place to start.
Who Is Antivirus Software Best For?
If you use any type of device with an online connection, you can likely benefit from antivirus software. Even top-of-the-line equipment can suffer from gaps and holes where hackers can gain access, harming your computer and stealing your data. Individuals can protect their private and personal information on their computers and phones. Meanwhile, businesses can safeguard not only their internal data but that of their customers. Antivirus software is versatile enough to work with all types of needs and devices, making it absolutely worth it to install one of the best antivirus softwares on your devices.
Types of Free Antivirus Software
- Anti-spyware: Anti-spyware is a type of free antivirus software that specifically targets spyware programs. It uses rule-based methods or is based on downloaded definition files in order to detect and prevent spyware.
- Anti-malware: Malware is a type of malicious software that can be harmful to your devices. Anti-malware software fights against this kind of threat by working to prevent, detect and remove any malware found.
- Network firewalls: A network firewall prevents any unauthorized access to your network. It is a security device that provides an extra layer of protection against any threats hidden within incoming and outgoing traffic.
- Browser security: Web browser security specifically focuses on your internet activity, using tools and technologies to prevent threats from attacking your data. It is able to help block any unauthorized third-party access.
- Mobile software: There are also programs designed specifically for mobile use. Not all companies offer a mobile-friendly app, but some of the best ones do. For example, McAfee Mobile Security is one of the best antivirus software for Android, while the best iPhone antivirus options include Avast and Bitdefender Antivirus for Mac. If you are using a laptop, the best antivirus for Mac includes Kaspersky and Norton.
How To Choose a Free Antivirus Software
When choosing the best free antivirus protection software, there are a few things to keep in mind that can help you find the best program for your needs.
Cost
In this analysis, we surveyed the best free versions of antivirus software. All of the programs listed here have a complimentary version available that provides advanced security protection for your devices. This gives you the opportunity to test a company’s capabilities before committing to a paid subscription with advanced features. Most programs do offer at least one paid plan if you want to upgrade, which could be handy further down the road. This scalability ensures that there is always a security solution available for you, even as your needs grow.
Performance
While some antivirus software is suitable for your daily activities, you may need a more advanced program if you run a business or perform heavy-duty tasks that can leave you vulnerable. To find the right support for your needs, confirm that the best free antivirus software program you choose will actually protect against the type of threats that may impact your devices. Many programs include access to a VPN service, which will secure your online data and protect your location while you use the web.
Features
Consider what types of tools and features are available with the software. Antivirus protection typically includes key features like malware and spyware protection with an ad blocker. Other features like parental controls, firewall support, email protection are also seen here. VPN access is especially beneficial, protecting your data and masking your location so you remain anonymous on the web. Before you choose a free antivirus program, consider what kind of features you need to protect your specific devices.
Reliability
It is hardly worth it to have antivirus software if it doesn’t work. The best free antivirus protection software provides steady reliability so you never lose your shield while you are using the web. It should be able to run efficiently, even when other programs are running while not affecting the overall performance of your device. Antivirus software also helps ensure that there are no false positives or negatives that leave you vulnerable.
Update Frequency
The best free antivirus software provides updates in real-time, so you always have the latest information. You should be able to check your status at any time and receive detailed information in real time about your device’s health. The software itself typically undergoes regular updates for new tools and features. It is critical that you use these updates and download new versions as necessary so you are always using the latest tools and technology.
System Compatibility
Not all antivirus software may work with your devices. It is especially important to check compatibility for mobile devices, as some software stops short after computer access. Most antivirus software works with PC and Mac systems, as well as Apple iPhone and Android devices. Some programs even work with Chromebook and Linux. Be sure to check the system requirements before choosing antivirus software so you have the right program that will work with your selected device.
Independent Lab Results: Which Free Antivirus Software Performed the Best
MRG Effitas Ltd., an independent IT security efficacy testing and assurance company, routinely performs a variety of tests on leading antivirus software. It awards a host of certificates, each based on the software’s performance against a specific kind of threat. These include an Assessment Certificate, Exploit Certificate, Online Banking Certificate, Ransomware Certificate and Phishing Certificate.
Assessment, in this case, refers to the initial detection rate of malware and the time it takes for the software to register any active malware threats. The goal of malware is to make money for the cybercriminals, and the longer it runs on your system, the more information it can gather. You want an antivirus software that quickly shuts down any such threats.
Antivirus software that performed well on these tests, detecting 98% of threats, includes Avast Business Antivirus, Avira, Microsoft Defender and ESET Endpoint Security (no free option).
All the antivirus software that rated the highest, detecting 100% of threats, requires a monthly subscription. Some offer a “6 months free deal” with signup. These include:
- Bitdefender: $29.99 to $89.99 per month
- Symantec Endpoint: $49.99
- Threatdown Endpoint Security: $69.00 to $119.00 per year
Other Free Antivirus Software Alternatives
Avira
Avira is another consideration for the best free antivirus software, offering a lightweight build that improves your devices instead of slowing them down. It seamlessly combines spyware, adware and ransomware blocking with real-time virus scans. In addition to malware protection, you can benefit from a convenient password manager and an integrated VPN. The junk remover feature If you detect a threat, try Avira’s Protection Cloud for a detailed AI analysis on your device. There is excellent compatibility for all of your devices, including Windows, Mac, Android and iOS. To upgrade, check out the Avira Prime package, which costs $60 for your first year and includes unlimited VPN service with premium features like the Password Manager Pro.
Panda
Panda Free Antivirus offers cloud-based monitoring with real-time updates for both Windows and Android devices. Antivirus protection fights malware and spyware with special USB protection. It is especially convenient if you are a gamer or stream a lot of content; with Multimedia/Game mode, there are extra safeguards built in to keep you secure while you receive data. Choose from scheduled or on-demand scans so you always know the status of your devices. If something is wrong, use Panda’s PC recovery system to get things working properly again.
ZoneAlarm
ZoneAlarm offers the best free firewall with two-way protection, blocking malware, viruses and other harmful threats. With its Extreme Security NextGen suite, ZoneAlarm offers multi-faceted support that includes ransomware and phishing protection. Users also gain access to exclusive features like Wi-Fi PC protection, Early Boot Protection and anti-bot safeguards. Download the desktop version or use the mobile app; ZoneAlarm is available for Android and iOS systems, or you can choose from free and paid options for Windows.
Newsweek writer Vanessa Nirode contributed to this post.
Frequently Asked Questions
What Is the Best Free Antivirus Software?
Avast is the best free antivirus software, leveraging thirty years of experience to provide a superior security experience. It uses AI technology to provide comprehensive antivirus protection that includes VPN access, web and email shields, Wi-Fi security scans and data leak alerts. It boasts six-layer security with ransomware, plus a 30-day money-back guarantee if you want to try the Premium features.
What’s the Best Free Antivirus Software for Chromebook?
Malwarebytes is the best free antivirus software for Chromebook, offering alerts in real time if a threat is detected. It is specifically designed to accommodate Android apps, constantly scanning for malicious threats like spyware and adware.
What’s the Best Free Antivirus Software for Windows?
Microsoft Defender was made specifically for Windows users and is only available on Windows systems, making it the best free antivirus software for Windows overall. Features are generous and include identity theft monitoring to go with your antivirus protection. It also received high ratings in independent lab tests, as mentioned above.
Is There a 100% Free Antivirus?
Our picks for the best free antivirus protection software come without any cost to you. The only exception is Microsoft Defender, which is only free to download after you have purchased a Windows PC.
Is It Okay To Download Free Antivirus Software?
Free antivirus software is available in many forms, but it is typically downloaded straight from the internet. However, be sure to follow safe practices and confirm that it is from a reputable source before you download anything from the internet. Any of the best free antivirus software providers listed here are a great place to start.
What’s the Safest Free Antivirus Download?
Even free antivirus software can be subject to threats like viruses and malware. It is critical to ensure that you download free antivirus software from one of the best antivirus software providers, like Avast, McAfee or any of the others mentioned here.
Editorial Disclosure: We may receive a commission from affiliate partner links included on our site. However, this does not impact our staffs’ opinions or assessments.
