Free Avast Free Antivirus Alternatives for Windows

There are many alternatives to Avast Free Antivirus for Windows if you are looking for a replacement. The best free Windows alternative is Avira Antivirus. If that doesn't suit you, our users have ranked more than 100 alternatives to Avast Free Antivirus and loads of them are free and available for Windows so hopefully you can find a suitable replacement. Other interesting free Windows alternatives to Avast Free Antivirus are Malwarebytes Anti-Malware, Microsoft Defender, ClamAV and Bitdefender Antivirus.

filter to find the best alternatives

Avast Free Antivirus alternatives are mainly Anti-Virus Apps, but if you're looking for Anti-Malware Apps or Firewalls you can filter on that. Other popular filters include Android + Free, Windows + Free, Free, Open Source, Windows and Mac + Open Source. These are just examples - use the filter bar below to find more specific alternatives to Avast Free Antivirus.
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Alternatives list

  1. Avira Antivirus icon

    Avira Antivirus

     407 likes
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    Offers real-time protection from malware, ransomware, viruses, and spyware, with advanced repair, browser safety, software updates, VPN, PC optimization tools, cloud-based updates, and system clean-up. Available for Windows, MacOS, Android, and iOS devices.

    76 Avira Antivirus alternatives

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    Avira Antivirus screenshot 1
     
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    3
    84
    Comments about Avira Antivirus as an Alternative to Avast Free Antivirus
    Guest
    Positive
    5

    Avira is the best performing vendor in core malware protection

    Review by a new / low-activity user.
    ymx
    Positive
    2

    Great usability, great security and a trustful German company.

    Guest
    Positive
    1

    the new UI is very intuitive, there are not many popups that try to upsell, protection is one of the best according to recent tests

    Review by a new / low-activity user.
    Avast Free Antivirus Icon
    Avira Antivirus icon

    • Almost everyone thinks Avira Antivirus is a great Avast Free Antivirus alternative.

    • Avira Antivirus is the most popular Windows & Mac alternative to Avast Free Antivirus.

    • Avira Antivirus is the most popular free alternative to Avast Free Antivirus.

    • Avira Antivirus is Freemium and ProprietaryAvast Free Antivirus is also Freemium and Proprietary
    • Avira Antivirus is LightweightAvast Free Antivirus is not according to our users
  2. Malwarebytes Anti-Malware icon

    Malwarebytes Anti-Malware

     860 likes
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    Comprehensive protection software utilizing AI and machine learning to detect and neutralize threats. Features include RDP and Ransomware Protection. Efficiently uses minimal system resources with customizable settings for scan modes and performance adjustments.

    112 Malwarebytes Anti-Malware alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Kindle Fire
    Malwarebytes Anti-Malware screenshot 1
     
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    9

    • Most users think Malwarebytes Anti-Malware is a great Avast Free Antivirus alternative.

    • Malwarebytes Anti-Malware is the most popular Android, iPhone, iPad & Android Tablet alternative to Avast Free Antivirus.

    • Malwarebytes Anti-Malware is Freemium and ProprietaryAvast Free Antivirus is also Freemium and Proprietary
    • Malwarebytes Anti-Malware is Lightweight and Privacy focusedAvast Free Antivirus is not according to our users
  4. Microsoft Defender icon

    Microsoft Defender

     161 likes
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    Windows Security (known as Windows Defender Antivirus before Windows 10 May 2020 Update, Windows Defender before Windows 10 Creators Update, or Microsoft Defender Antivirus before Windows 11) is an anti-malware component of Microsoft Windows.

    105 Microsoft Defender alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application types

    Platforms

    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Microsoft Defender screenshot 1
     
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    31
    Comments about Microsoft Defender as an Alternative to Avast Free Antivirus
    christob
    Positive
    4

    It's free, has no ads and works very well! It is almost invisible and doesn't bother my work.

    Guest
    Positive
    6

    No advertisement Not a scareware

    Review by a new / low-activity user.
    Guest
    Positive
    6

    Free, built in, up to date, and doesn't nag you every 20 seconds to upgrade to fix CRITICAL SYSTEM PROBLEMS which are just some files in your Recycling Bin and a few registry items you can fix with CCleaner.

    Review by a new / low-activity user.
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    3 of 4 comments
    Avast Free Antivirus Icon
    Microsoft Defender icon

    • Most users think Microsoft Defender is a great Avast Free Antivirus alternative.

    • Microsoft Defender is Free Personal and ProprietaryAvast Free Antivirus is Freemium and Proprietary
    • Microsoft Defender is LightweightAvast Free Antivirus is not according to our users
  5. Ad
    Screenshot
    Malwarebytes Anti-Malware icon
    Malwarebytes Anti-Malware

    Comprehensive protection software utilizing AI and machine learning to detect and neutralize threats. Features include RDP and Ransomware Protection. Efficiently uses minimal system resources with customizable settings for scan m...

    https://www.malwarebytes.com
    Learn More
  6. ClamAV icon

    ClamAV

     248 likes
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    Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways. It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and advanced tool for automatic...

    98 ClamAV alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    ClamAV GUI
     
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    25

    • Almost everyone thinks ClamAV is a great Avast Free Antivirus alternative.

    • ClamAV is the most popular Linux alternative to Avast Free Antivirus.

    • ClamAV is the most popular Open Source alternative to Avast Free Antivirus.

    • ClamAV is Free and Open SourceAvast Free Antivirus is Freemium and Proprietary
    • ClamAV is Lightweight and Privacy focusedAvast Free Antivirus is not according to our users
  7. Bitdefender Antivirus icon

    Bitdefender Antivirus

     114 likes
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    Free antivirus offering comprehensive protection with real-time threat detection, AI-powered security, lightweight performance, Game mode, user-friendly interface, and auto updates. Supports multiple platforms and provides live customer support. Ideal for all users.

    62 Bitdefender Antivirus alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Bitdefender Antivirus screenshot 1
     
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    3
    18
    Comments about Bitdefender Antivirus as an Alternative to Avast Free Antivirus
    yaronlavi
    Positive
    2

    Bitdefender is quiet and powerful. has no advertisements and less false positives than most antiviruses offered in the same rank.

    Jack Vegas
    Positive
    2

    It's lightweight and has a "set it and forget it" mindset. It has no ads, it's reliable, the customer support is wonderful, and has fewer false positives than the other antiviruses I've tried in the past.

    Guest
    Positive
    1

    light,noninvasive, reliable, free

    Review by a new / low-activity user.
    Avast Free Antivirus Icon
    Bitdefender Antivirus icon

    • Most users think Bitdefender Antivirus is a great Avast Free Antivirus alternative.

    • Bitdefender Antivirus is Freemium and ProprietaryAvast Free Antivirus is also Freemium and Proprietary
    • Bitdefender Antivirus is Minimalistic and LightweightAvast Free Antivirus is not according to our users
  8. AVG AntiVirus icon

    AVG AntiVirus

     285 likes
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    AVG AntiVirus Free provides basic antivirus and antispyware protection for home users. Virus database updated every day. Includes innovative LinkScanner for web-protection.

    75 AVG AntiVirus alternatives

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • Chrome OS
    AVG AntiVirus screenshot 1
     
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    1
    24
    Comments about AVG AntiVirus as an Alternative to Avast Free Antivirus
    Guest
    Positive
    -4

    Reliable. It has kept me out of trouble for nearly 15 years.

    Review by a new / low-activity user.
    Avast Free Antivirus Icon
    AVG AntiVirus icon

    • Most users think AVG AntiVirus is a great Avast Free Antivirus alternative.

    • AVG AntiVirus is Freemium and ProprietaryAvast Free Antivirus is also Freemium and Proprietary
  10. AdwCleaner icon

    AdwCleaner

     181 likes
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    Detects and removes adware, PUPs, toolbars, browser hijackers, and unwanted plugins with fast scanning and cleaning. Requires no installation and runs as a portable utility. Cleans files and registry traces, fixes altered browser settings, and can run from flash drives.

    52 AdwCleaner alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application types

    Platforms

    • Windows
    AdwCleaner screenshot 1
     
  11. Tron Script icon

    Tron Script

     36 likes
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    Tron is a collection of programs, tools, utilities, and Windows functions that are all scripted together. Those programs and such are designed to remove malware and bloatware, repair damaged operating systems, update old versions of very common applications, free up drive space...

    167 Tron Script alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    Tron Script screenshot 1
     
  12. Comodo Internet Security icon

    Comodo Internet Security

     236 likes
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    Comodo Internet Security is a free, very voluminous and multi-layered security application that keeps hackers out and personal information in.

    80 Comodo Internet Security alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Windows
    Comodo Internet Security screenshot 1
     
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    8
    Comments about Comodo Internet Security as an Alternative to Avast Free Antivirus
    Cyberia
    Positive
    0

    Compelete internet Internet Security packages from the leading frim in the industry.

    Avast Free Antivirus Icon
    Comodo Internet Security icon

    • Almost everyone thinks Comodo Internet Security is a great Avast Free Antivirus alternative.

    • Comodo Internet Security is Freemium and ProprietaryAvast Free Antivirus is also Freemium and Proprietary
    • Comodo Internet Security is CustomizableAvast Free Antivirus is not according to our users
  13. ClamWin icon

    ClamWin

     122 likes
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    ClamWin is a free, open-source antivirus software for Microsoft Windows, using the ClamAV engine. It has an easy-to-use installer and its source code is publicly available. It features high detection rates for viruses and spyware, a scanning scheduler, and automatic updates of...

    65 ClamWin alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Windows
    • PortableApps.com
    Configuration Screen
     
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    1
    10
    Comments about ClamWin as an Alternative to Avast Free Antivirus
    GPL_is_freedom
    Positive
    0

    it uses the gpl license which promotes your freedom. it is free but not as in price but as in freedom

    Avast Free Antivirus Icon
    ClamWin icon

    • Almost everyone thinks ClamWin is a great Avast Free Antivirus alternative.

    • ClamWin is Free and Open SourceAvast Free Antivirus is Freemium and Proprietary
    • ClamWin is Lightweight and Privacy focusedAvast Free Antivirus is not according to our users
  14. Panda Dome icon

    Panda Dome

     71 likes
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    Panda Antivirus protects you while you work, play, or browse online.

    Antivirus Protection Real-time protection against all types of malware and spyware. Schedule periodic scans and/or scan your computer on demand.

    USB protection Protect your PC by preventing the automatic execu.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    Panda Dome screenshot 1
     
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    10
  15. Kaspersky Virus Removal Tool icon

    Kaspersky Virus Removal Tool

     42 likes
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    Kaspersky Virus Removal Tool is a free software intended to disinfect infected computers, removing viruses, Trojans, and spyware, as well as any other types of malware. Kaspersky Virus Removal Tool 2011 uses the same highly efficient algorithms for detecting malware as Kaspersky...

    54 Kaspersky Virus Removal Tool alternatives

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Windows
    • Linux
    Kaspersky Virus Removal Tool screenshot 1
     
12 of 65 Avast Free Antivirus alternatives