Free antivirus, trusted by millions of people
Boost your PC's protection against cyberthreats and web-based scams. Check suspicious messages or offers with our new AI-powered Avast Assistant.
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
December 2025
Top Product
AV-Test: “Top Product” in December 2025 for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
December 2025
Top Product
AV-Test: “Top Product” in December 2025 for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
January 2026
Top–Rated Product 2025
AV-Comparatives: “Top–Rated Product 2025” for Avast Free Antivirus (the award-winning protection from Avast Free Antivirus is also available in the Avast One app)
Avast Free Antivirus also gives you extra layers of protection, at no cost.
Spot scams fast
We use AI technology to help you block risky website links in your web browser. Our Avast Assistant also gives you guidance about potential scams in seconds.
Safer Wi-Fi, anywhere
Connect safely to any Wi-Fi network, even unsecured public networks, plus see who’s using your home Wi-Fi and block any intruders with a click.
Ransomware protection
Protect your information. Don't let your personal photos, files, and documents fall victim to hackers using ransomware.
Catches threats before they reach you, so you don't have to
Avast Free Antivirus goes further than standard antivirus, with intelligent tools that catch scams, protect your focus, and stop new threats before they cause harm.
Blocks scams and malicious sites before they reach you
Web Guard blocks harmful websites and hidden scams designed to steal your money or personal details. Spotted something suspicious? Avast Assistant analyses it and gives you a clear answer in plain language.
Pauses pop-ups when you want to work or play
Avast pauses pop-ups while you're on a video call, watching a film, or working, so you stay focused without ever dropping your guard.
Stops ransomware before it can spread
Avast Free Antivirus watches how programs actually behave, not just what they're called. So brand-new ransomware and scams get blocked before they can lock your files or drain your accounts.
Easy to install, effortless to use
Our antivirus software scans for security and performance issues and helps you to fix them instantly. It also protects you in real time by analyzing unknown files before they reach your desktop PC or laptop, all for free.
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