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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.

2021 Editors' Choice
2021 Outstanding Security Product
2021 Top Rated product
Award-winning Antivirus
Catch even new & emerging threats
435+ million users worldwide
We have 30+ years of experience
Avast Free Antivirus

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
Effortlessly run smart scans on software, files, and apps to find vulnerabilities, plus analyze suspicious files in the cloud, get threat alerts, and more.
Easy to install and use
It only takes a moment to install Avast Free Antivirus and once it’s done, it’ll run quietly in the background, protecting you against viruses and other malware in real time, 24/7
Wi-Fi network security
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.
Protection against ransomware attacks
Protect your information. Don't let your personal photos, files, and documents fall victim to hackers using ransomware.
Avast Premium Security

Complete protection for all your devices

Our most advanced protection is your toughest defense against viruses, ransomware, zero-day threats, Wi-Fi vulnerabilities, and more.

Avast SecureLine VPN

Choose a VPN for true online privacy

Block ISPs from tracking your activity, stop geo-restrictions from content providers, and ensure public Wi-Fi is safe with Avast’s Virtual Private Network (VPN).

Avast Cleanup Premium

Enjoy more storage space and a faster device

Reclaim gigabytes of storage space and get your device working like new by removing junk like leftover files, bloatware, and unwanted programs. Avast Cleanup also updates your software automatically, hibernates resource-draining apps, and more.

It’s so easy to install — switching to Avast takes seconds

You can start using Avast’s award-winning antivirus immediately. It’s quick and easy to install, and gives you all the protection you need to live your online life securely. And it’s totally free — so give it a try right now.

Avast has over 435 million users worldwide

The UI for your software - amazing. Great work over the years. Can't say enough good things!

Ryan R.

Thank you, Avast, for the excellent work you do. I run your antivirus software on both my Mac OS X and my Windows machines. You have the best products on the market, period.

Eric S.

I’ve been using Avast for over a year and have found it one of the best free software protection devices on the market.

Daryl C.
“...earns excellent scores in our hands-on tests and independent lab tests...it offers much more than many competing commercial products...”
"Awarded Outstanding Security Product 2021 by AV-Comparatives."

Get privacy and performance tips, straight from the experts

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.

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435Musers trust Avast

Also available for: Android, iOS, Mac

Also available for: iOS, Android, PC

Also available for: PC, Mac, iOS

Also available for: PC, Mac, iOS

Also available for: Mac, PC, Android

66M+threats blocked every day
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