Best Free Anti-Spyware Software of 2025

Control D is a customizable DNS filtering and traffic redirection platform that leverages Secure DNS protocols like DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC, with support for Legacy DNS. With Control D you can: block malicious threats, block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more), redirect traffic using transparent proxies and gain visibility on network events and usage patterns, with client level granularity. Think of it as your personal Authoritative DNS resolver for the entire Internet that gives you granular control over what domains get resolved, redirected or blocked.

An efficient and rapid antivirus solution ensures comprehensive protection for your computer against various forms of malware, including cryptolockers, screen blockers, banking trojans, adware, spyware, and potentially unwanted programs. During its development, we thoroughly examined contemporary antivirus requirements, leading to a product that effectively fulfills these expectations. NANO Antivirus Sky Scan offers the capability to analyze files using a cloud-based scanner. Furthermore, with NANO Antivirus Sky Scan, users can conveniently manage the NANO Antivirus software on their devices, swiftly access system protection status updates, and view the latest news directly within the application interface. Specifically tailored for touchscreen devices, NANO Antivirus Sky Scan enhances user experience while maintaining robust security. This innovative approach ensures that users can navigate their antivirus features with ease and confidence.

Our robust malware protection solution shields your PC from a wide array of threats, including viruses, ransomware, spyware, Trojans, adware, and worms. Recent enhancements in advanced heuristics have been implemented to effectively identify various virus variants and additional threats. Furthermore, the newly upgraded anti-malware engine, which boasts a 100% increase in capacity, enables speedy and thorough scans of your computer while working in tandem with the Bitdefender engine and IObit Anti-ransomware engine to provide multi-core defense. Additionally, IObit Malware Fighter 8 offers a secure safe box feature where you can lock away your sensitive files; simply set a password and store your important data, ensuring that only you have access to it. The anti-ransomware component further reinforces the protection of your data by proactively defending against any ransomware attempts. Moreover, the browser security feature ensures a safe and enjoyable online experience for both professional and personal activities. With these comprehensive layers of security, you can surf the web with complete peace of mind.

Safeguard your computer against a variety of threats, including malware, spyware, ransomware, trojans, and keyloggers. Enhance the capabilities of Microsoft Defender to address issues within your operating system, registry, task manager, and internet connections that may arise due to malicious software. Stay informed with alerts for product and database updates as they become available. The software performs scans discreetly in the background and can initiate while your device is in sleep mode. It effectively quarantines potential threats and eliminates even the most persistent ones, while also providing the option to restore items deemed safe. Additionally, it repairs components of your operating system affected by malware, including the registry and internet connectivity issues. The System Investigator tool allows you to detect spoofed and harmful files, as well as giving you insight into your installed applications and browser extensions, enabling you to monitor changes to your system over time. This comprehensive approach ensures your PC remains secure and functions smoothly.

It detects spyware, viruses, and malware and safely removes them from your computer to keep it as safe as possible. This program can be used in conjunction with your main antivirus. It detects malicious items that you wouldn't know existed. Flexible scheduling for automatic scans. Your computer is more secure because it can detect items that your antivirus might miss. This keeps your computer safe and secure, giving it the peace of mind that you need. It is compatible with any antivirus brand. It scans your system memory for any malicious programs. Detects cookies that track and collect personal data. Security issues are checked in the system and temporary folders. Analyzes suspicious entries in the registry and auto-start items. Verifies the safety of programs that are set to auto-start according to the task schedule. To prevent data leaks, scan browser extensions. Quick scan that analyzes the most critical areas where threats are found.

MacBooster serves as the ultimate maintenance solution for your Mac, effectively cleaning up 20 different types of junk files while also safeguarding your device from malware and viruses to ensure optimal protection. Additionally, this tool enhances your Mac's hard disk performance, allowing it to operate at its highest potential. By eliminating various junk files, you can reclaim valuable storage space on your Mac, making it run more efficiently. With its advanced optimization features, MacBooster drives your Mac towards peak performance levels while keeping it safe from potential threats such as viruses, spyware, malware, and adware. Equipped with five cleanup tools, MacBooster can remove gigabytes of clutter, freeing up even more space for seamless operation. This is especially advantageous for Mac users with limited SSD storage. Duplicates can accumulate quickly on your device, but MacBooster identifies and intelligently cleans up these unnecessary files, preventing wasted space. Furthermore, large and outdated files can consume significant storage on your hard disk, but in just a few seconds, MacBooster can efficiently locate and eliminate them, ensuring your Mac stays fast and responsive. Ultimately, MacBooster is an essential tool for anyone looking to maintain their Mac's performance and security.

K7's Antivirus for Mac operates seamlessly in the background, ensuring that your Mac's performance remains unaffected. For over a decade, it has been recognized as one of the top antivirus solutions among numerous international contenders. The software is designed to identify and remove threats instantly. Additionally, K7 conducts automatic scans of all connected devices, networks, and websites, maintaining your security at all times. It performs real-time scans on every file as it is accessed, effectively blocking or removing any infected items. The user-friendly interface simplifies operations with one-click functionalities for essential tasks. It is capable of detecting threats specific to both Mac and non-Mac systems, including viruses, spyware, trojans, worms, and adware, whether they reside on your computer, network drives, external disks, or arrive via downloads and email. Regular updates are provided quickly, along with OS X-style notifications to ensure you can respond promptly to any emerging threats. This comprehensive protection allows users to navigate their digital environments with confidence.

Discover which apps on your device contain ads and potential spyware to eliminate unwanted intrusions! This application scans for various nuisances introduced by installed apps, including intrusive push notifications, spammy desktop icons, and those posing privacy risks or containing spyware. It effectively identifies adware, enabling you to remove any applications that compromise your privacy. Additionally, it assists in clearing away bothersome advertisement notifications and unwanted bookmarks cluttering your home screen. By revealing which apps have permissions to access sensitive information like your messages or accounts, it empowers you to take control of your privacy and avoid potentially costly services. The app addresses concerns related to push notifications—whether promotional or irrelevant—as well as the risk of apps accessing your location, contacts, messages, or accounts. Moreover, it checks for the presence of social SDKs, helping you determine if apps are linked to platforms like Facebook, VKontakte, Twitter, and others, ensuring that your digital experience is free from unwanted distractions and threats.

Simple Malware Protector effectively detects and addresses threats and vulnerabilities on your computer, allowing for swift and simple resolution. It provides continuous monitoring to safeguard your system from future infections, ensuring ongoing protection. Regular updates keep Simple Malware Protector aligned with the most recent threats and vulnerabilities, enhancing its defensive capabilities. Users have the flexibility to schedule scans at startup or at any preferred time, giving them control over their security management. Additionally, the software offers options for quick, deep, or custom scans to cater to individual requirements. By scanning your system, Simple Malware Protector identifies various security threats and vulnerabilities. It swiftly and securely eliminates these dangers, preventing them from resurfacing. Safeguard your computer from malware, spyware, and other potential security risks, and restore your PC's optimal security. With its user-friendly interface, Simple Malware Protector makes protecting your device an effortless task.

Adaware Antivirus provides robust protection for your computer against various online threats, allowing you to concentrate on what truly matters, whether it's socializing with friends, managing your email, or enjoying videos. The Windows version of Adaware Antivirus offers features like the ability to schedule daily scans, access real-time security, and tackle suspicious activities, ensuring your Windows devices remain secure. By downloading the free edition, you can utilize its security features across all your favorite devices. With award-winning malware protection, it effectively defends against viruses, ransomware, spyware, and other malicious software. You can browse and shop online with confidence, as it prevents hackers from gaining access to sensitive information on your Windows devices, including those running Windows 10, all at no cost. It also includes email protection and advanced antispam filters to shield your inbox. Furthermore, with malicious URL detection, you can steer clear of online scams, while scanning all downloads to prevent potential harm to your PC. In addition, it actively blocks harmful processes and infected files, offering real-time defense for your digital activities.

Discover the top free online virus scanner that effectively uncovers hidden dangers lurking on both your PC and Mac. It’s essential to determine whether your files are secure and to prevent harmful software that may exist outside of your files. Many threats can compromise your device's safety before you even become aware of them. HouseCall provides a solution to restore your device to its normal functioning state. The comprehensive report generated will outline the threats that have targeted your device, allowing you to take prompt action. HouseCall offers you the flexibility to select from a quick scan or a more thorough full scan, and you even have the option to create a custom scan tailored to your needs. This service allows you to identify and eliminate viruses, worms, spyware, and various other malicious threats completely free of charge. HouseCall efficiently detects new threats on your Windows or Mac computers without interfering with your existing security software. You can trust HouseCall to keep your device free from harmful files and prevent their proliferation. Additionally, HouseCall for Home Networks extends its scanning capabilities to all devices connected to your home network, identifying vulnerabilities and providing recommendations for addressing them effectively.

Safeguard your computer from spyware and various forms of unwanted software! It's straightforward, reliable, and highly regarded. Spyware, adware, browser hijackers, and dialers rank among the most troublesome and widespread dangers on the Internet today. Merely visiting a website might result in your device becoming the unsuspecting target of these disruptive programs! SpywareBlaster is designed to enhance your system's security while allowing you to enjoy the positive aspects of the web. Unlike many other applications, SpywareBlaster does not need to operate in the background at all times. It seamlessly integrates with your existing software to bolster your system's defense. It prevents the installation of ActiveX-based spyware and blocks potentially harmful programs. Additionally, it limits the activities of risky websites and stops tracking through cookies. SpywareBlaster is compatible with any software already present on your computer, providing an extra, robust layer of security to whatever you may currently have installed, ensuring a safer online experience.

Robust safeguards against various cyber threats, along with a theft prevention system and parental controls, will ensure optimal security for your devices and those of your family members. It effectively blocks phishing attempts and other potentially harmful websites. To maintain the highest level of security, the database of malicious websites is refreshed multiple times each day. The Battery module not only shows the current charge level but also offers features like a history of battery usage and options for power conservation. This feature enables users to easily clear the phone's cache and remove unnecessary files, along with the option to selectively clear the downloads folder. Furthermore, the system includes an antivirus scanner that protects against harmful links. Users will appreciate the program's user-friendly interface, which simplifies the process of configuring and managing device security. Additionally, it automatically conducts virus scans on all installed applications, ensuring continuous protection against emerging threats.

Anti Spy safeguards your Android device not only against well-known spyware like mSpy and FinSpy but also against surveillance, SMS tracking, and GPS monitoring employed by various government and law enforcement entities. The application is user-friendly, operating efficiently and quickly. With a simple click, it identifies and permanently removes potential threats and hidden spyware processes. Utilizing advanced deep detective technologies and the Protectstar AI cloud, Anti Spy, along with its real-time algorithms, delivers robust protection against a diverse array of modern hacking attempts and fraudulent activities. The release of version 6.0 introduces a groundbreaking feature: the antispyware dual engine, which synergizes the advantages of two distinct antispyware systems for enhanced security. Additionally, users can bolster their device’s security with helpful tips and verify if their email addresses have been compromised in data breaches. This comprehensive approach ensures that users remain informed and secure in an ever-evolving digital landscape.

Micro Guard ensures that your conversations remain private and secure from hackers and spy cameras. By simply clicking once, you can fully shield the microphone of your Android device. This protection activates instantly, allowing Micro Guard to monitor and block any applications or processes that seek access to your smartphone's microphone. Any attempts to breach your security are promptly reported. To enhance usability, you can select specific applications that are permitted to use the microphone for calls and recordings, ensuring both ease of use and a strong focus on privacy. Additionally, the Deep Detective feature acts as a smart and adaptable guardian, continuously monitoring which processes or programs are trying to access the microphone. It not only reports known threats but also utilizes advanced heuristic methods to identify unknown attempts at intrusion. Complementing this, we have designed the Camera Guard application, which provides an effortless way to protect your camera from unauthorized access. Together, these tools create a comprehensive security suite for your device.

Our complimentary antivirus solution has significantly improved. It now offers real-time security updates, conducts thorough scans for malware, ransomware, and performance-related issues, while intercepting harmful downloads before they can affect your computer. Additionally, you'll appreciate the newly revamped, user-friendly interface that clearly displays your protection status. Remarkably, all these features operate without compromising your system's speed. Whether you opt for the free version or the complete protection package, you will benefit from robust security that automatically updates itself. Furthermore, with an advanced virus scanner designed to detect and eliminate threats, you can feel confident that your family is safeguarded against emerging dangers. This software not only halts viruses, spyware, and ransomware but also adds an extra layer of ransomware protection to secure your personal folders, blocks unsafe links and downloads, and thoroughly scans for any PC performance issues, ensuring comprehensive safety and efficiency. As new threats continue to evolve, staying protected has never been more critical.

Wise Anti Malware provides robust defense against a variety of online threats, including viruses, malware, adware, ransomware, phishing attacks, spyware, and potentially unwanted programs. Its standout feature is the real-time protection, which serves as the primary barrier to shield your PC from malware risks. The software is equipped with three protective shields: malware detection, adware detection, and registry protection, ensuring comprehensive coverage. In partnership with Avira Operations GmbH & Co. KG, Wise Anti Malware integrates advanced threat detection technologies and a comprehensive virus database to guard against multiple threats, such as ransomware variants like Petya GoldenEye, as well as adware and PUAs. When you download software from unreliable sources, it often comes bundled with ad-supported applications that can lead to persistent pop-up ads and unwanted changes to your settings. Wise Anti Malware effectively removes these intrusive applications and can restore your Internet Explorer homepage settings, providing users with a safer browsing experience. Additionally, it regularly updates its database to stay ahead of emerging threats, ensuring your system remains protected against the latest cyber dangers.

Award-winning technology for identifying iPhone spyware. It can uncover spyware and tracking applications on your device, including those that are engineered to remain hidden. Assess your operating system for any alterations that might endanger your security, such as instances of jailbreaking. Perform scans to uncover security weaknesses that could jeopardize your personal data. Identify spy applications that may be monitoring your phone calls and text messages. Recognize sophisticated threats and thwart potential hackers. Discover which applications have access to your microphone, camera, or whereabouts. This tool aids in swiftly eliminating threats from your device. When needed, you can seek assistance from professionals. Protect all your devices effectively. Our cutting-edge spyware detection technology can reveal whether a device is infected with spyware or monitoring software. Additionally, it can identify harmful keyboards that might allow unauthorized recording of your keystrokes. Stay informed about which applications have the capability to access your location, microphone, or camera, and receive alerts if any known tracking applications are found on your device. You can have peace of mind knowing your privacy is safeguarded at all times.

BadBadgerAntiMalware provides users with complete protection from existing and emerging cyber threats. Zero-day threat analysis from a team of professionals gives BadBadgerAntiMalware the best malware detection and blocking rates on the market.

Bytefence offers cutting-edge anti-malware software that identifies and eliminates a range of threats including trojans, worms, spyware, and various high-risk malware types. Renowned for its efficacy, ByteFence serves as a powerful shield against crapware and bundleware that can seep into unwanted programs and advertisements. With its real-time protection feature, users are consistently safeguarded from harmful infections and undesired software. The software boasts strong defenses against all forms of malware, efficiently scanning and eradicating dangerous trojans, worms, and spyware. For many years, Byte Technologies has led the way in malware detection and removal technology, and today, we safeguard millions of users with advanced systems that can foresee and counteract emerging malware threats. Our application is specifically crafted for ease of installation, configuration, and operation, ensuring a user-friendly experience. In the event that assistance is required, our dedicated support team is quick to respond, ready to provide help. Additionally, we present a comprehensive array of online resources and complimentary support for our products during the trial phase, ensuring that users have everything they need for a smooth experience. We remain committed to continuous improvement and innovation in the fight against malware.