Free antivirus is your first step to online freedom
We believe everyone has the right to be safe online, which is why we offer our award-winning free antivirus to millions of people around the world.
Get free antivirus that comes with advanced privacy and security tools
Avast Free Antivirus is more than just an antivirus — it also includes these specialist tools:
6 layers of security
Easy to install and use
Wi-Fi network security
Protection against ransomware attacks
Complete protection for all your devices
Enjoy more storage space and a faster device
It’s so easy to install — switching to Avast takes seconds
Avast has over 435 million users worldwide
Get privacy and performance tips, straight from the experts
A computer virus is designed to infect programs & files with malicious code, changing how a computer operates and spreading across systems.
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Keeping people safe & secure around the world
Using real-time intelligence from over 435 million Avast users, we prevent more than 66 million threats every day.