The Best Open Source Avast Free Antivirus AlternativesTop Anti-Malware & Anti-Virus Apps like Avast Free Antivirus

The best open source alternative to Avast Free Antivirus is ClamAV. If that doesn't suit you, our users have ranked more than 100 alternatives to Avast Free Antivirus and 15 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Avast Free Antivirus are Tron Script, ClamTk, ClamWin and LoveLaceAV.

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Avast Free Antivirus alternatives are mainly Anti-Virus Apps, but if you're looking for Anti-Malware Apps or System Cleaners 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. ClamAV icon
     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
     
  2. Tron Script icon
     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)

    Platforms

    • Windows
     
  3. ClamTk icon
     74 likes

    ClamTk is a graphical front-end for ClamAV, an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats. It is designed to be an easy-to-use, lightweight, on-demand antivirus scanner for Linux systems.

    63 ClamTk alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Linux
     
  4. ClamWin icon
     122 likes

    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...

    67 ClamWin alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Windows
    • PortableApps.com
     
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    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

    ClamWin icon
    ClamWin icon
    • 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
  5. LoveLaceAV icon
     9 likes

    LoveLaceAV is a Hypatia fork, FOSS malware scanner for Android. It is powered by ClamAV style signature databases.

    49 LoveLaceAV alternatives

    Cost / License

    Application types

    Platforms

    • Android
    • F-Droid
     
  6. Kapitano icon
     3 likes

    I be Kapitano, yer fearless captain o' the digital seas — a trusty malware hunter set to keep yer Linux shipshape from foul threats!

    Cost / License

    Application types

    Alerts

    • Discontinued

    Platforms

    • Linux
    • Flathub
    • Flatpak
     
  7. LibreAV icon
     5 likes

    Anti-malware for Android using machine learning. Contribute to projectmatris/antimalwareapp development by creating an account on GitHub.

    80 LibreAV alternatives

    Cost / License

    Application types

    Alerts

    • Discontinued

    Platforms

    • Android
    • Android Tablet
     
  8. Clam Sentinel icon
     10 likes

    Clam Sentinel is a system tray application that detects file system changes and scans modified files using ClamWin . It also detects new devices (like USB flash drive) and monitors them until the program is closed or until the device is...

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
     
  9. Download Virus Checker provides automatic check for all your downloads through 68 online anti-virus solutions. Basically the extension sends your download link to VirusTotal service and wait for its response.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Google Chrome
    • Opera
    • Firefox
     
  10. CS Anti-Virus icon
     2 likes

    Provide real time shield, process/memory scanner, file/path scanner, scheduled scans, automatic daily update and use the ClamAV database with over 720.000 virus signatures. CS Anti-Virus with the ClamAV engine is FREE. (GNU/GPL license).

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
     
  11. Raspirus icon
     Like

    Sometimes you work on a computer that is not connected to the internet. It even has no antivirus installed, and you guess you are safe. But it could be used by a lot of people that upload and download files using their personal USB sticks.

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
     
12 of 15 Avast Free Antivirus alternatives