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Download free antivirus software

Our free download now includes much more to keep you safe and private online, including free antivirus, VPN, and firewall. Introducing the new Avast One.
An all-in-one solution for privacy, protection, and performance
2023
Editors’ choice
4.5
2023
Top Product
Award-winning antivirus
Secure any Wi-Fi network
Shop and bank safely
Speed up your PC
Speed up your Mac
Speed up your PC
Avast One

Essential protection for your life today

A free all-in-one service combining antivirus, VPN, performance enhancement, and security tools to help you stay private and safe.
Antivirus to safeguard your devices against malware
Block viruses and other malware like ransomware with real-time intelligence from the industry's largest threat detection network.
Take control of your online safety
With regular feedback on your digital habits and personalized tips, we’ll help you take charge of your online and device safety.
Secure your connection for extra privacy with VPN
Get added privacy and secure your internet connection with VPN, so your online activities can’t be spied on.
Take back control of your privacy
Your online accounts hold a lot of data about you. We’ll help you control how your data is used and who can see it with our short, easy-to-follow guides to some of the most popular websites and apps, including Facebook and Amazon.
Speed up your PC by optimizing apps
Optimize the background activity of your apps so they stop being a drain on your PC when you aren't using them.

What is Avast One?

To guarantee a safe and enjoyable online experience, an antivirus alone isn’t enough. So we’re offering Avast One, the integrated service to increase privacy, connect securely, speed up your devices, and stay safe from viruses.

Avast One is an all-in-one service with a single free download — available for PC, Mac, Android, and iPhone/iPad.
Avast One
Fast, light, and powerful free protection. It's just a click away