AlternativeTo Logo

Open Source Avast Free Antivirus Alternatives

The best open source alternative to Avast Free Antivirus is Clam AntiVirus. If that doesn't suit you, our users have ranked more than 100 alternatives to Avast Free Antivirus and 14 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Avast Free Antivirus are ClamTk, ClamWin, Tron Script and Simple Software Restriction Policy.

Avast Free Antivirus alternatives are mainly Anti-Virus Apps but may also be Anti-Malware Apps or Firewalls. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Avast Free Antivirus.
This page was last updated Jun 26, 2022
  • Free PersonalProprietary
  • Mac
  • Windows
  • Android
  • iPhone
  • iPad
  • Android Tablet

Avast Free Antivirus a the free for non-commercial and home usage antivirus solution from AVAST Software.

Learn more about Avast Free Antivirus

  1. Clam AntiVirus

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • BSD

    Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways.

    Almost everyone thinks Clam AntiVirus is a great alternative to Avast Free Antivirus.
  2. ClamTk

    • FreeOpen Source
    • Linux

    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.



  3. ClamWin

    • FreeOpen Source
    • Windows
    • PortableApps.com

    [Please note that ClamWin Free Antivirus does not include an on-access real-time scanner. You need to manually scan a file in order to detect a virus or spyware.]

    ClamWin vs Avast Free Antivirus opinions
    Most users think ClamWin is a great alternative to Avast Free Antivirus.
    GPL_is_freedom

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

    Positive comment about 2 years ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    0
  4. Tron Script

    • FreeOpen Source
    • Windows

    Tron is a collection of programs, tools, utilities, and Windows functions that are all scripted together.

  5. Simple Software Restriction Policy

    • FreeOpen Source
    • Windows

    Security add-on for Windows. Make it considerably harder for unwanted software to get launched. Not through file signatures but through identifying places where executables have no right to be, for example Documents folders.



  6. kicom

    • FreeOpen Source
    • Windows
    • Linux

    KicomAV is an open source (GPL v2) antivirus engine designed for detecting malware and disinfecting it. In fact, Since 1995, it has been written in C/C++ and it was integrated into the ViRobot engine of HAURI, 1998. I decided to re-create a new KicomAV.

    Discontinued

    The last version (0.31) was released in June 2018.

    No screenshots yet
  7. LibreAV

    • FreeOpen Source
    • Android
    • Android Tablet

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

    No screenshots yet
  8. CS Anti-Virus

    • FreeOpen Source
    • Windows

    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).

    Discontinued

    The program is no longer updated. Last version, 0.1.2b, released in April 2010, can be still downloaded from the official website.

  9. Winpooch Watchdog

    • FreeOpen Source
    • Windows

    Winpooch is a watchdog for Windows (2000, XP, 2003, but only 32-bits). It detects modifications in your system, so as to detect a trojan or a spyware installation. It also includes a real-time anti-virus.

    Discontinued

    As of 2008-06-13, this project is no longer under active development. Winpooch can be still downloaded from SourceForge.

  10. Hypatia Malware Scanner

    • FreeOpen Source
    • Android
    • Android Tablet
    • F-Droid

    Hypatia is the world's first FOSS malware scanner for Android. It is powered by Clam AntiVirus style signature databases.

Showing 10 of 14 alternatives