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

    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
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    Avira Antivirus screenshot 1
     
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    3
    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.
    Avira Antivirus icon
    Avira Antivirus icon
    • 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

     862 likes

    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
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Kindle Fire
    Malwarebytes Anti-Malware screenshot 1
     
  4. Microsoft Defender icon

    Microsoft Defender

     162 likes

    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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    4
    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.
    3 of 4 comments
    Microsoft Defender icon
    Microsoft Defender icon
    • 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
  6. ClamAV icon

    ClamAV

     248 likes

    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

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    ClamAV GUI
     
  7. Kaspersky AntiVirus icon

    Kaspersky AntiVirus

     176 likes

    Kaspersky AntiVirus offers protection from a range of IT threats and provides the basic tools needed to keep your PC secure.

    83 Kaspersky AntiVirus alternatives

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

    • Windows
    • Mac
    • iPhone
    • iPad
    • Android
    • Android Tablet
    Kaspersky Free
     
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    2
    Comments about Kaspersky AntiVirus as an Alternative to Avast Free Antivirus
    Guest
    Positive
    0

    Great for protecting phone and PC

    Review by a new / low-activity user.
    Guest
    Positive
    1

    doesn't include scaring users when closing ads

    Review by a new / low-activity user.
    Kaspersky AntiVirus icon
    Kaspersky AntiVirus icon
    • Kaspersky AntiVirus is Paid and ProprietaryAvast Free Antivirus is Freemium and Proprietary
  8. Bitdefender Antivirus icon

    Bitdefender Antivirus

     114 likes

    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
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Bitdefender Antivirus screenshot 1
     
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    3
    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.
    Bitdefender Antivirus icon
    Bitdefender Antivirus icon
    • 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
  10. AVG AntiVirus icon

    AVG AntiVirus

     285 likes

    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
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • Chrome OS
    AVG AntiVirus screenshot 1
     
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    1
    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.
    AVG AntiVirus icon
    AVG AntiVirus icon
    • AVG AntiVirus is Freemium and ProprietaryAvast Free Antivirus is also Freemium and Proprietary
  11. Spybot - Search & Destroy icon

    Spybot - Search & Destroy

     438 likes

    Detects and removes spyware, adware, keyloggers, browser hijackers, and tracking cookies, offering system immunization, real-time protection, manual or scheduled scans, quarantine and secure deletion, detailed reports, and multilingual support.

    98 Spybot - Search & Destroy alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    • PortableApps.com
    Prices for Corporate Edition
     
  12. ESET NOD32 Antivirus icon

    ESET NOD32 Antivirus

     258 likes

    Experience a fast, efficient antivirus with ESET's AI-powered defense against viruses, ransomware, and phishing. Enjoy features like cloud-powered scanning, Enhanced Exploit Blocker, Device Control, and Gamer Mode for uninterrupted use. Optimize your security and maintain speed.

    72 ESET NOD32 Antivirus alternatives

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    ESET NOD32 Antivirus screenshot 1
     
  13. AdwCleaner icon

    AdwCleaner

     181 likes

    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
     
  14. Tron Script icon

    Tron Script

     34 likes

    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 (MIT)

    Application types

    Platforms

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

    Comodo Internet Security

     236 likes

    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
    • Proprietary

    Application types

    Platforms

    • Windows
    Comodo Internet Security screenshot 1
     
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    1
    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.

    Comodo Internet Security icon
    Comodo Internet Security icon
    • 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
12 of 109 Avast Free Antivirus alternatives