List of the Top 20 Free Anti-Spyware Software in 2025

Control D is a versatile DNS filtering and traffic redirection service that utilizes advanced Secure DNS protocols such as DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC, while also accommodating traditional DNS. With Control D, users can effectively eliminate harmful threats, restrict various types of undesirable content across the network—including advertisements, trackers, IoT data, adult material, social media, and more—while also redirecting traffic through transparent proxies and monitoring network activities and usage patterns at a client-specific level. Consider it your own personalized Authoritative DNS resolver for the entire Internet, providing you with detailed control over which domains are allowed to be resolved, redirected, or blocked. This capability not only enhances security but also empowers users to tailor their online experience according to their preferences.

A swift and effective antivirus solution provides extensive defense for your computer against a wide range of malware types, such as cryptolockers, screen blockers, banking trojans, adware, spyware, and potentially unwanted applications. In crafting this product, we meticulously analyzed the modern requirements for antivirus software, resulting in a tool that meets these needs proficiently. NANO Antivirus Sky Scan boasts a cloud-based scanner that can thoroughly examine files for potential threats. Additionally, users of NANO Antivirus Sky Scan benefit from the ability to easily oversee the antivirus software on their devices, promptly check updates on system protection status, and stay informed with the latest news directly from the app. Designed specifically for touchscreen devices, NANO Antivirus Sky Scan significantly improves the user experience while ensuring strong security measures. This cutting-edge solution empowers users to navigate their antivirus features smoothly and with assurance, allowing them to maintain control over their digital safety.

Our comprehensive malware protection service safeguards your computer against a multitude of threats, such as viruses, ransomware, spyware, Trojans, adware, and worms. Recently, we have introduced advanced heuristics that greatly enhance our ability to detect various virus types and other emerging threats. The upgraded anti-malware engine has seen a remarkable 100% increase in processing power, allowing for rapid and thorough scans while effectively collaborating with the Bitdefender and IObit Anti-ransomware engines to deliver robust multi-core defense. Additionally, IObit Malware Fighter 8 includes a secure safe box feature, enabling users to lock their sensitive files with a password and ensure that only they can access their crucial data. The anti-ransomware functionality offers an additional layer of protection by actively defending against potential ransomware attacks. Furthermore, our browser security feature guarantees a secure and enjoyable online experience, whether for work or leisure. With these extensive security measures in place, you can confidently browse the internet, knowing your data and privacy are well-protected. This holistic approach to security not only safeguards your system but also enhances your overall digital experience.

Protect your computer from various dangers, such as malware, spyware, ransomware, trojans, and keyloggers. Boost Microsoft Defender's functionality to resolve challenges within your operating system, registry, task manager, and internet connections that may be caused by malicious programs. Keep yourself updated with notifications regarding product enhancements and database updates as they are released. The software conducts scans quietly in the background and can even activate while your device is in sleep mode. It effectively isolates potential threats and removes even the most stubborn ones while offering the ability to recover items considered safe. Furthermore, it addresses issues in your operating system that have been impacted by malware, including problems with the registry and internet connectivity. The System Investigator tool provides capabilities to identify spoofed and harmful files, while also offering insights into your installed applications and browser extensions, which helps you track changes to your system over time. By adopting this thorough strategy, you ensure that your PC not only stays protected but also operates efficiently and reliably. Regular use of these features can lead to a long-term improvement in your device's overall performance and security posture.

The software identifies and eliminates spyware, viruses, and malware, ensuring your computer remains as secure as possible. It seamlessly integrates with your primary antivirus solution and uncovers harmful elements that may be hidden from your view. With the option for flexible scheduling, you can set up automatic scans to maintain constant protection. By identifying threats that your antivirus may overlook, it significantly enhances your computer's security. This essential tool not only safeguards your device but also offers you the peace of mind you deserve. It works effectively with any antivirus program, scanning system memory for harmful applications. Additionally, it identifies tracking cookies that accumulate personal data, checks for security vulnerabilities in the system and temporary folders, and evaluates suspicious registry entries and auto-start programs. Moreover, it verifies the safety of applications scheduled to start automatically and scans browser extensions to avert potential data breaches. With a quick scan feature, the program targets the most critical areas where threats are likely to be detected, ensuring comprehensive protection for your system. Overall, this software plays a vital role in maintaining a secure computing environment.

MacBooster stands out as a comprehensive maintenance tool for your Mac, proficiently removing 20 distinct categories of junk files while also providing robust defense against malware and viruses to maintain your device’s security. This application not only optimizes your Mac's hard disk performance but also allows it to function at its peak capabilities. By clearing out various junk files, it helps you recover essential storage space, leading to improved efficiency in your Mac's operations. With its sophisticated optimization features, MacBooster propels your Mac toward top performance while shielding it from a range of threats including viruses, spyware, malware, and adware. Featuring five specialized cleanup tools, MacBooster can eliminate gigabytes of unnecessary files, creating additional space for smooth functionality. This is particularly beneficial for Mac users who have limited SSD storage options. While duplicates can quickly accumulate on your device, MacBooster adeptly identifies and removes these redundant files, preventing unnecessary space wastage. In addition, large and outdated files that take up valuable storage can be swiftly found and deleted by MacBooster, ensuring that your Mac remains agile and responsive. Overall, MacBooster is an indispensable asset for anyone aiming to enhance and secure their Mac's performance in a seamless manner. Its user-friendly interface also makes it accessible for all levels of users, ensuring that anyone can maintain their Mac with ease.

K7's Antivirus for Mac runs quietly in the background, ensuring that your Mac's performance is not hindered. For more than ten years, it has consistently been recognized as one of the leading antivirus solutions worldwide. This software is engineered to swiftly detect and eliminate various threats. Moreover, K7 automatically scans all connected devices, networks, and websites to uphold your security continually. It conducts real-time examinations on every file as it is opened, effectively neutralizing or quarantining any harmful items. The interface is designed for ease of use, featuring one-click options for essential functions. It is adept at identifying threats not only specific to Mac systems but also those that affect non-Mac platforms, including a variety of malware such as viruses, spyware, trojans, worms, and adware, regardless of whether they originate from your computer, external drives, or incoming downloads and emails. Regular updates are delivered promptly, complemented by OS X-style notifications to enable immediate responses to any potential risks. This all-encompassing protection allows users to explore their digital worlds with assurance, fostering a safer online experience. With K7, you can focus on your work and leisure without worrying about security vulnerabilities.

Uncover the applications on your device that feature advertisements and possible spyware, freeing your phone from these unwanted elements! This tool detects various disturbances associated with the apps installed on your device, such as bothersome push notifications, spam icons on your desktop, and apps that could jeopardize your privacy or contain spyware. It highlights adware and provides the means to uninstall any applications that threaten your security. This utility helps you eliminate annoying ad alerts and unnecessary bookmarks cluttering your screen. You will also gain insights into which applications have permissions that might allow access to your messages or accounts, presenting potential risks to your privacy, along with any services that could lead to unexpected charges, making their removal simpler. Moreover, it tackles issues related to push notifications, both promotional and otherwise, as well as the presence of spam icons on your desktop, while also examining privacy concerns such as access to your location, contacts, messages, or accounts. Additionally, it verifies whether your apps are utilizing social SDKs from platforms like Facebook, VKontakte, Twitter, and more, thereby increasing your understanding of the applications you engage with. By using this tool, you can take control of your device's security and ensure a more private user experience.

Simple Malware Protector is designed to effectively identify and resolve threats and vulnerabilities on your computer, facilitating a quick and straightforward solution. It ensures continuous monitoring, which helps keep your system protected from future infections, thereby providing lasting security. The software frequently updates to remain in sync with the latest threats and vulnerabilities, further bolstering its protective features. Users can customize their experience by scheduling scans at startup or choosing any convenient time, allowing them to manage their security effectively. Moreover, it allows for quick, deep, or custom scans, catering to diverse user preferences and needs. By thoroughly scanning your system, Simple Malware Protector detects a wide range of security threats and vulnerabilities. It promptly and securely removes these risks to prevent their return, thereby maintaining your computer's integrity. Protect your system from malware, spyware, and other potential security threats while restoring your PC's optimal safety. The software also features an intuitive interface, making the task of securing your device a hassle-free experience. Overall, Simple Malware Protector stands as a reliable guardian for your digital environment.

Adaware Antivirus delivers strong defense for your computer against a wide range of online dangers, allowing you to focus on what matters most, like staying in touch with friends, handling your emails, and watching videos. Tailored for Windows, this software includes features such as the option to set up daily scans, real-time security monitoring, and the capability to detect and eliminate suspicious activities to keep your devices safe. You can conveniently download the free version to utilize fundamental security features across all your preferred devices. This award-winning antivirus software protects against all types of malware, efficiently blocking threats like viruses, ransomware, and spyware. It ensures that your online shopping and banking activities are secure while safeguarding your sensitive information from hackers on Windows devices, including those operating on Windows 10, at absolutely no cost. Moreover, it provides email safeguarding and advanced antispam filters to protect your inbox from unwanted messages. With its malicious URL detection, you can avoid online scams, and by scanning all downloads, it proactively prevents potential harm to your computer. Additionally, it continually blocks harmful processes and compromised files in real-time, offering thorough security for your online endeavors, which helps maintain your peace of mind while navigating the digital landscape. This comprehensive approach to online safety ensures that your digital experience remains uninterrupted and secure.

Uncover the leading free online virus scanner that proficiently reveals hidden risks present on both PCs and Macs. It's crucial to assess the safety of your files to prevent malicious software that may be lurking unnoticed. Numerous threats can jeopardize your device's security before you even realize they are there. HouseCall steps in to help restore your device to optimal functionality. The detailed report it generates highlights the threats that have targeted your device, enabling you to act swiftly. You can choose between a quick scan, an in-depth full scan, or even tailor a custom scan to suit your specific needs. This service ensures that you can detect and remove viruses, worms, spyware, and other harmful threats entirely for free. Moreover, HouseCall operates smoothly alongside your existing security software, effectively identifying new threats on your Windows or Mac systems. You can rely on HouseCall to safeguard your device from harmful files and inhibit their spread. Moreover, HouseCall for Home Networks broadens its scanning services to encompass all devices linked to your home network, pinpointing vulnerabilities and offering actionable solutions to enhance your overall security. By utilizing this service, you can ensure a comprehensive defense for all your connected devices, creating a safer digital environment for your household.

Protect your computer from spyware and other undesirable software effectively! This tool is known for its simplicity, dependability, and excellent reputation. Among the most pervasive and troubling threats on the Internet today are spyware, adware, browser hijackers, and dialers. Just browsing a website can turn your device into an innocent victim of these intrusive applications! SpywareBlaster is specifically crafted to boost your system's security while letting you enjoy the benefits of online browsing. Unlike several other programs, it does not require constant background operation. Instead, it integrates smoothly with your existing software to strengthen your system's protection. It prevents malicious ActiveX-based spyware from being installed and blocks potentially dangerous applications from running. Furthermore, it restricts the behavior of perilous websites and halts tracking via cookies. Compatible with any software already on your computer, SpywareBlaster adds an additional, potent layer of security to your current setup, making your online activities significantly safer and more secure against emerging threats. By using SpywareBlaster, you can navigate the web with confidence, knowing that your system is better protected against various online dangers.

Comprehensive protection measures against a variety of cyber threats, combined with a system designed to prevent theft and parental controls, will provide optimal safety for both your devices and those belonging to family members. It successfully prevents phishing attacks as well as access to potentially dangerous websites. To ensure the highest security standards, the database containing malicious sites is updated several times a day. The Battery module not only displays the current charge status but also includes features such as a history of battery usage and tools for power saving. This functionality allows users to effortlessly clear their phone's cache and eliminate unnecessary files, with the added ability to selectively clear the downloads folder as needed. In addition, the system is equipped with an antivirus scanner that defends against harmful links. Users are likely to appreciate the program’s intuitive interface, which streamlines the configuration and management of device security. Moreover, it automatically performs virus scans on all installed applications, guaranteeing ongoing defense against new threats. This multi-faceted approach to security ensures that users can navigate their digital environments with confidence and peace of mind.

Anti Spy enhances the security of your Android device by defending it against not only prominent spyware like mSpy and FinSpy but also various forms of surveillance, SMS tracking, and GPS monitoring typically used by government and law enforcement agencies. The application is designed to be intuitive, operating with both speed and efficiency. With just a single click, it can swiftly detect and eradicate potential threats along with any concealed spyware processes. By employing cutting-edge deep detection technologies alongside the Protectstar AI cloud, Anti Spy, paired with its real-time algorithms, provides formidable defense against a wide range of contemporary hacking attempts and scams. The latest version 6.0 brings an innovative antispyware dual engine feature, which combines the strengths of two separate antispyware systems for improved security. Furthermore, users can enhance their device’s protection with practical advice and check if their email addresses have been involved in any data breaches. This all-encompassing strategy ensures that users stay well-informed and secure in a constantly changing digital environment, giving them peace of mind as they navigate online spaces.

Micro Guard guarantees that your discussions are kept confidential and safeguarded against unauthorized access from hackers and surveillance devices. With just a single click, you can completely disable the microphone on your Android device. This instant protection allows Micro Guard to actively oversee and prevent any applications or processes that try to gain entry to your smartphone’s microphone. Any security breaches are swiftly reported to you, ensuring that you are always informed. To improve user experience, you can choose specific applications that are allowed to access the microphone for calls and recordings, balancing convenience with a strong emphasis on privacy. Furthermore, the Deep Detective feature serves as an intelligent and proactive protector, consistently monitoring which applications or processes are attempting to utilize the microphone. It not only alerts you to known threats but also employs sophisticated heuristic techniques to detect unfamiliar intrusion attempts. In addition to this, we have developed the Camera Guard application, which offers a seamless method to safeguard your camera from unauthorized access. By combining these powerful tools, you create a robust security suite that significantly enhances the protection of your device against potential threats. This comprehensive approach ensures that both your audio and visual privacy are well-guarded in today's digital landscape.

Our enhanced antivirus software is now more robust than ever before. It offers immediate security updates and meticulously scans for various threats, including malware, ransomware, and performance issues. With the ability to identify harmful downloads prior to them reaching your device, it ensures an extra layer of safety. The newly designed, user-friendly interface clearly illustrates your protection status. Notably, it operates without causing any slowdown to your system. You can enjoy formidable security that seamlessly updates, whether you opt for the full version or the complimentary one. This gives you peace of mind, knowing that your family is safeguarded by a state-of-the-art virus scanner. It effectively blocks and eliminates all viruses, while also defending against spyware, ransomware, and additional malware threats. You can secure your personal files with an additional layer of ransomware protection, prevent unsafe links, downloads, and email attachments, and conduct thorough scans of your PC for any performance-related issues. With this comprehensive suite of features, you can navigate the digital world with confidence.

Wise Anti Malware offers strong protection against a wide array of online dangers, such as viruses, malware, adware, ransomware, phishing scams, spyware, and potentially unwanted applications. One of its most impressive features is the real-time protection that acts as the first line of defense to safeguard your computer from various malware threats. This software includes three layers of protection: malware detection, adware detection, and registry protection, all working together to provide thorough security. Collaborating with Avira Operations GmbH & Co. KG, Wise Anti Malware employs sophisticated threat detection methods and an extensive virus database to defend against numerous dangers, including ransomware types like Petya GoldenEye, as well as adware and unwanted programs. When downloading from questionable sources, users may inadvertently acquire software that comes with ad-supported applications, leading to annoying pop-up ads and unwanted alterations to their settings. Fortunately, Wise Anti Malware effectively eliminates these disruptive applications and can restore the homepage settings of Internet Explorer, thus enhancing users' online safety. Furthermore, it continuously updates its database to counteract new threats, ensuring your system is well-guarded against the latest cyber hazards. With its user-friendly interface, it makes securing your computer easy and accessible for everyone.

Revolutionary technology designed to detect spyware on iPhones has garnered accolades for its effectiveness. This innovative solution can reveal hidden tracking software and applications that compromise your device's security. It evaluates your operating system for any dangerous modifications, including the risks associated with jailbreaking. By conducting thorough scans, it identifies vulnerabilities that could put your personal information at risk. Additionally, it can pinpoint spy applications that might be secretly monitoring your communications, such as phone calls and text messages. The system is equipped to recognize advanced threats and prevent potential hacking attempts. It also enables you to see which applications are permitted to access your microphone, camera, or location data. This powerful tool facilitates the quick removal of threats from your device, and when the situation calls for it, professional assistance is readily available. Ensure the protection of all your devices with this state-of-the-art spyware detection technology, which can ascertain whether any spyware or monitoring software is present. Moreover, it can detect harmful keyloggers that may facilitate unauthorized keystroke capture. Stay vigilant about the applications that have access to your sensitive features and receive timely notifications if any suspicious tracking software is detected on your device. With this comprehensive approach, you can have confidence in the safeguarding of your privacy at all times, allowing you to use your devices worry-free.

BadBadgerAntiMalware ensures comprehensive security against both current and developing cyber threats. With the expertise of a dedicated team conducting zero-day threat analysis, BadBadgerAntiMalware achieves superior rates of malware detection and prevention, making it one of the leading solutions available today. Additionally, users can trust that their systems are safeguarded from the latest vulnerabilities as they emerge.

Bytefence provides state-of-the-art anti-malware software designed to detect and eliminate a wide variety of threats, such as trojans, worms, spyware, and other high-risk malware variants. Well-known for its effectiveness, ByteFence acts as a robust barrier against unwanted programs and advertisements that may infiltrate users' systems. With its real-time protection feature, individuals are constantly shielded from harmful infections and unwanted software. The software is equipped with formidable defenses against all types of malware, thoroughly scanning and removing perilous trojans, worms, and spyware. For several years, Byte Technologies has been at the forefront of malware detection and removal, currently protecting millions of users with innovative systems that can anticipate and neutralize emerging malware threats. Our application is designed for easy installation, configuration, and use, ensuring a seamless experience for all users. Should any assistance be needed, our dedicated support team is always ready to help promptly. Furthermore, we offer an extensive range of online resources and free support for our products during the trial period, guaranteeing that users have every tool necessary for a hassle-free experience. Our commitment to ongoing enhancement and innovation in the battle against malware remains a top priority, as we strive to stay ahead of potential threats. As technology evolves, Bytefence continuously adapts to ensure that user data is protected against the ever-changing landscape of cyber threats.