Antivirus Software for Windows

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Browse free open source Antivirus software and projects for Windows below. Use the toggles on the left to filter open source Antivirus software by OS, license, language, programming language, and project status.

  • High-performance Open Source API Gateway Icon
    High-performance Open Source API Gateway

    KrakenD is a stateless, distributed, high-performance API Gateway that helps you effortlessly adopt microservices

    KrakenD is a high-performance API Gateway optimized for resource efficiency, capable of managing 70,000 requests per second on a single instance. The stateless architecture allows for straightforward, linear scalability, eliminating the need for complex coordination or database maintenance.
  • JobNimbus Construction Software Icon
    JobNimbus Construction Software

    For Roofers, Remodelers, Contractors, Home Service Industry

    Track leads, jobs, and tasks from one easy to use software. You can access your information wherever you are, get everyone on the same page, and grow your business.
  • 1
    ClamWin

    ClamWin

    Antivirus software with virus scanning and virus definition updates

    Looking for free Open Source Antivirus for Windows? Download ClamWin Free Antivirus and get free virus scanning and free virus definition updates. Free Antivirus software for Windows, using the well-respected ClamAV scanning engine. Includes virus scanner, scheduler, virus database updates, context menu integration to MS Windows Explorer and Add-in to MS Outlook. Also features easy setup program.
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    Downloads: 3,577 This Week
    Last Update:
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  • 2

    dex2jar

    Tools to work with android .dex and java .class files

    Mirrors: * https://bitbucket.org/pxb1988/dex2jar * https://github.com/pxb1988/dex2jar dex2jar contains following compment * dex-reader is designed to read the Dalvik Executable (.dex/.odex) format. It has a light weight API similar with ASM. * dex-translator is designed to do the convert job. It reads the dex instruction to dex-ir format, after some optimize, convert to ASM format. * dex-ir used by dex-translator, is designed to represent the dex instruction dex-tools tools to work with .class files. * d2j-smali disassemble dex to smali files and assemble dex from smali files. different implementation to smali/baksmali, same syntax, but we support escape in type desc "Lcom/dex2jar\t\u1234;" * dex-writer write dex same way as dex-reader.
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    Downloads: 1,171 This Week
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  • 3
    Thanks for your support..
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    Downloads: 205 This Week
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  • 4
    Clam sentinel is a program that detects file system changes and automatically scans the files added or modified using ClamWin. Require the installation of ClamWin. For Microsoft Windows 98/98SE/Me/2000/XP/Vista, Windows 7 and Windows 8.1.
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    Downloads: 105 This Week
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  • EBizCharge Payment Platform for Accounts Receivable Icon
    EBizCharge Payment Platform for Accounts Receivable

    Getting paid has never been easier.

    Don’t let unpaid invoices limit your business’s growth. EBizCharge plugs directly into the tools your business already uses to speed up payment collection.
  • 5
    Robolinux

    Robolinux

    MAX Privacy with Robolinux R12.12

    All 3 Robolinux Desktop versions come with new login and grub boot splash screens & LibreWolf browser which has the highest privacy! LibreWolf is a fork of Firefox so you can use its data. The Legacy Bios isos only work in VM's & Non UEFI PC's. Don't miss 50% Off 12+ price only $59.95 Expires August 17 2024 The 12+ Sale details Robo UNTRACKER Custom Installer FREE! Save $40 FAAST Boot Custom Installer FREE! Save $40 Backdoor security Custom Installer FREE! Save $40 12 Advanced upgrades! Privacy App installers FREE! Stealth VM for FREE! Save $40 C Drive to VM for FREE! Save $40 The UNTRACKER makes you 100% anonymous on the internet so you can stop being tracked & traced by Evil Governments & Spy Agencies! All Robolinux R12 rolling realease Legacy BIOS & UEFI versions have the newest 5.15 Linux Kernel, compilers & software libraries & applications. Each rock solid R12 version has Long Term Support through 2025 Follower of YASHUA! John Martinson Robolinux.org
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    Downloads: 117 This Week
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  • 6

    Antivirus Live CD

    4MLinux fork including ClamAV scanner

    Antivirus Live CD is an official 4MLinux fork including the ClamAV scanner. It's designed for users who need a lightweight live CD, which will help them to protect their computers against viruses. Ethernet, WiFi, PPP and PPPoE are supported by Antivirus Live CD to enable automatic updates of its virus signature databases. All partitions are mounted during the boot process so that they can be scanned by ClamAV. The Antivirus Live CD ISO images are fully compatible with UNetbootin, which can be used to create an easy-to-use Antivirus Live USB.
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    Downloads: 149 This Week
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  • 7
    USB Shortcut VIRUS remover

    USB Shortcut VIRUS remover

    This simple program removes the shortcut virus from the USB.

    PS. this is not an antivirus !!! This simple program removes the shortcut virus from the USB. This will enable you to have access to the files without clicking on the shortcut icon (this silly one YES!!). You will have to follow these steps: 1- insert your infected USB storage device 2- record the USB drive letter (eg. E: F:) 3- open usb-shortcut-remover.hta file. 4- enter the device letter in the empty text field. 5- click the arrow next to the text field. 6- wait until it is done. 7- access your USB drive. you will find an unnamed folder. 8- access the unnamed folder, you will find all your files. Buy us coffee https://www.buymeacoffee.com/sewagecode
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    Downloads: 342 This Week
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  • 8
    A tool to block viruses in USB flash/disk from auto-running. When a USB disk is inserted, this tool not only locks the "autorun.inf" file, but also locks all the autorun-related virus and other suspicious files.
    Downloads: 24 This Week
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  • 9
    RogueKiller

    RogueKiller

    The next generation virus killer. Remove unknown malware

    The next generation virus killer. Remove unknown malware, stay protected. Free virus cleaner for everyone. Thanks to its powerful engine RogueKiller is able to find known and unknown malware, of all kind. Search and clean viruses, ransomware, trojans and other malware. Powered with innovative Artificial Intelligence and Cloud signatures engine, RogueKiller is the best virus removal tool. Try our free virus cleaner now for free ! RogueKiller antimalware software is shipped with state-of-the-art malware protection. The real time protection stops infected programs before they execute. Don't let malicious software setup, stop them before they do harmful actions! Protect your important documents against corruption and theft. With the increasing threat of Ransomware, it's very important to keep your documents secured. Don't be the next victim of a thousand dollars ransom, turn RogueKiller anti ransomware protection on!
    Downloads: 26 This Week
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  • Safety Management Platform | SafetyIQ Icon
    Safety Management Platform | SafetyIQ

    Keep your workers safe, no matter where they are

    SafetyIQ is revolutionizing the way businesses approach safety. As a leading provider of comprehensive workplace safety software, we cater to four key areas: Mobile Worker Safety, EHS (Environment, Health, and Safety), Fatigue Management, and Training. Our platform is designed to safeguard your workers, no matter their location or task, ensuring all-around safety compliance. Unlike most safety software providers that only react to incidents or implement proactive measures, SafetyIQ introduces a third pillar to safety management - predictive analytics. We transform the untapped wealth of safety data within your organization into actionable insights to inform safety strategies, mitigating risks even before they aris
  • 10
    CyberGod KSGMPRH

    CyberGod KSGMPRH

    Open-Source antivirus for Windows

    This is an effective tool which is capable of detecting thousands and thousands of malware in your PC, including the shortcut virus to nasty ransomware, The database is regularly updated. See the video for how to use this tool. Version: 1.3 MD5: 707D4BE2AA4547A542A7EEFDB7BC4C4D SHA-1: 899B80928DF59C5745B56480DAA6A51E7F65CB18A4 Source code MD5: 38B3A08D62E7ADD2EE30FCA375207499 IMPORTANT: =========== FULL VERSION : https://sourceforge.net/projects/cybergod-ksgmprh/ NOTE: ===== If this tool has helped you consider supporting it please http://bit.ly/supportCyberGodKSGMPRH via paypal http://bit.ly/CyberGodSecurityDonate
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    Downloads: 7 This Week
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  • 11
    Flash Drive Protector
    Small and portable utility for protecting flash drive from autorun and another viruses, by quick filling out free space, preventing from creating even empty file, and more...
    Downloads: 13 This Week
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  • 12
    Spybot Search and Destroy

    Spybot Search and Destroy

    Protect your computer against malware

    Spybot - Search & Destroy is an anti-spyware and privacy protection tool that has been providing quality security solutions since the early 2000's. Spybot S&D provides complete anti-malware and anti-spyware protection as the System Scan aims to detect and remove all kinds of threats from your Windows PC. These include Adware, Spyware, Trojans and many more. Spybot's Immunization feature keeps you safe online by preventing access to malicious sites and blocks tracking cookies. Spybots Forensics Detectives are constantly on the look out for the latest forms of malware and continuly adding new detection rules.
    Downloads: 22 This Week
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  • 13
    ComboFix

    ComboFix

    Scan for and remove malware and spyware

    Combofix is a freeware program that scans and removes malware and spyware from computers running Windows XP, Vista, 7, and 8. It was created by sUBs and is designed for advanced users. Combofix can remove malware that other products cannot. It backs up your registry hives, quarantines files, and creates a log of its actions.
    Downloads: 8 This Week
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  • 14
    Quickly recover problems that was created by viruses/malwares: Registry editor has been disable, task manager has been disable. also, contains sort of 'task-manager-replacement'. The name is a bit pretentious, but I couldn't think of any better name :-)
    Downloads: 5 This Week
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  • 15
    eEye Retina Community

    eEye Retina Community

    Powered by the same engine as the world famous Retina Network Scanner

    Powered by the same engine as the Retina Network Security Scanner, Retina Community is a completely free security scanner for up to 128 IPs. Use it to scan servers, desktops - any networked device - for security flaws, and learn how to fix them. New: Now, you can scan virtual applications, deployed via VMware ThinApp, for flaws as well. This is a new industry development, completely unique to eEye.
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    Downloads: 10 This Week
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  • 16
    EG ClamNet Antivirus

    EG ClamNet Antivirus

    A simple antivirus that provide a graphical interface for ClamAV

    EG ClamNet Antivirus provides a graphical user interface for ClamAV Executables. EG ClamNet antivirus is simple and user friendly antivirus (currently for Windows OS ) that uses ClamAV as an internal scanning engine to detect trojans, viruses, malware and other known malicious threats. It can be installed on the existing default windows antivirus (Windows Defender) and compatible with it as extra protection. 1) Antivirus & Internet Security: EG ClamNet Antivirus is powered by ClamAV which has fast scanning, detects over 9 millions viruses, malware, worms and trozens. It also protects from MS Office macro viruses, mobile malware, other threats (including known ransomware). 2) Cleaner: EG ClamNet Antivirus has an additional feature of effective cleaning of junk files. With this feature you can optimize your system, increase memory space and system speed by cleaning junk files. Cleaning such junk files improves your system's security and speed-up your system.
    Downloads: 8 This Week
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  • 17
    Removes most common pen drive viruses such as autorun.inf, new folder.exe, bha.vbs, ravmon.exe, etc.....
    Downloads: 8 This Week
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  • 18
    Treater Antivirus

    Treater Antivirus

    Cloud antivirus scanner based on machine detection

    Treater Anti-Virus is a free portable anti-virus on demand scanner which does not require the installation and updates of signatures. The application is able to detect and neutralize threats not found by the main protection program, such as Trojans, Ransomware, Worms, Dialers, Adware, Riskware, Pornware, SMS Blocks, etc. The utility does not require installation and can be launched from removable USB/CD drives as a "resuscitator" tool to unlock the computer. During the development, the interface requirements were taken into account, which has an intuitive structure and light colors in the Metro style. Different verification options By default, the antivirus program has the most possible settings and will scan all dangerous and critical system directories that are prone to infection. Unknown objects will be filtered out, and then they will be loaded into the cloud for further analysis. The analysis of the transferred files is carried out with our own original development "COGA"
    Downloads: 5 This Week
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  • 19
    Defa Protect HTML5 Video From Download

    Defa Protect HTML5 Video From Download

    Prevent and Protect Your HTML5 Video, Music , Audio From Download Free

    Defa Protector is A Simple PHP and Wordpress Plugin To Protect and Prevent Video Save As From Browser and Some Video Grabber. There is 100% Guaranteed Protection and There might be some tradeoff but If you care about Digital Rights Management of Your Video and Music Content. This Project is for you. Defa Protector 6.7.1 Revamp Code For Better Performance To The Bone. We almost rewritten this project from scratch.
    Downloads: 6 This Week
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  • 20
    Gian Virus Defender 9.1
    A powerful OpenSource Antivirus for your PC, includes: context menu extension, system cleaner, Tray Menu Mode, Integrated GUI, Fast Scanner, Real-Time Virus Remover, Autorun.inf Removal and Registry Virus Remover., system configuration, secured file
    Downloads: 6 This Week
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  • 21
    ClamGuard

    ClamGuard

    Free and opensource antivirus solution based on ClamAV.

    Free and opensource antivirus solution based on ClamAV. Fully written in Python using PySide6. Source code hosted on GitHub at https://github.com/5trange/ClamGuard Linux packages coming soon.
    Downloads: 5 This Week
    Last Update:
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  • 22
    Shortcut Virus Remover

    Shortcut Virus Remover

    Sample and fast software to remove Shortcut Virus

    Shortcut Virus Remover is an easy to use application, capable of detecting the presence of the Shortcut threat. The software can easily fix the damage done by the virus, thus restoring all the icons in the selected drive. The application is lightweight and requires only that you select the drive you wish to clean.
    Downloads: 5 This Week
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  • 23

    Amiti Free Antivirus

    Effective and easy to use free antivirus

    Effective and easy to use free antivirus for your PC. Protects against viruses, trojans, worms and malware. Amiti Antivirus has built-in real-time memory shields, scheduling, multiple skin and translations support. Uses famous clamav antivirus engine library.
    Downloads: 9 This Week
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  • 24
    An open source browser with antivirus, system cleaning, file folder locking, social networking, movie viewing, chatting and parental website block features.
    Downloads: 5 This Week
    Last Update:
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  • 25

    Orca AntiVirus

    Orca antivirus for Windows PC, virus and malware cleaner

    Free antivirus for Windows PC, speeds up Windows PC and laptop. Orca antivirus is made to work on all versions of windows above Windows Vista and is capable of detecting viruses and malware. Orca antivirus does not offer any premium and is 100% free
    Downloads: 4 This Week
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