Avast Free Antivirus

Powerful, free security for you and your family.


Also available for Mac and Android too.

Award-winning real-time protection

But don’t just take our word for it. See what independent industry experts think.

AV Comparatives Top Performer

5 Advanced+ awards and the lowest impact on PC performance

PC Mag Editor's Choice

We’re consistently rated excellent in our class

Virus Bulletin 100 Certified

Avast is recognized by the most important anti-malware testing institute

Avast isn’t just free for a day or a month.
It’s free forever, or however long you need it.

Protect as many devices as you want

Why stop at just one? Help your friends
and family stay secure too.

You choose. Avast is fully customizable
so you can make it as simple or
as complex as you like.

More people. More security

The world’s largest community of users, combined with cutting-edge cyber intelligence make Avast Free Antivirus exceptionally powerful.

Avast virus detections by region,
per quarter.

  • Your Avast-protected device acts as a sensor, receiving lots of code.
  • Our VirusLab determines which code is harmful and which is safe.
  • A ‘vaccine’ is immediately created against the harmful code, and sent to every Avast-protected device.
  • The process is repeated throughout the day, keeping you protected against the newest virus attacks.
  • This helps us block around 50 million attacks - every single day.

Start with SmartScan

A simple click has never been more powerful. Avast Free Antivirus checks the most important parts of your PC — and tells you how to fix them instantly.

Detect anything nasty, like viruses, malware, ransomware, ads, tracking, and outdated-software.

Make sure your printer, TV, phone, tablet and anything else connected to your network stays safe.

Get rid of unwanted extensions and annoying toolbars with Browser Cleanup.

Beat hackers – automatically. Update your software without even thinking about it.

Forget your passwords. Log in anywhere with just one. We’ll make it unbreakable.

Store more of what you actually want, and do everything much faster by optimizing your PC.

Finish with peace of mind

Once you download Avast Free Antivirus, sit back and relax. It comes with more protective features than any other antivirus around.

What others have to say about us

Awards are nice, but what you have to say matters even more.
We’re proud to share some of your feedback here.

Ryan Rentfro testimonial Ryan Rentfro

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

Ryan Rentfro testimonial Eric Scherer

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."

Ryan Rentfro testimonial Daryl Colley

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

Installing it is easy

Avast Free Antivirus FREE DOWNLOAD

This is for PC.
Protect your Mac and Android too.

You don’t have to be a rocket scientist. You just need a PC with Windows 10, 8.1, 8, 7, Vista, or XP SP3 (excl. Start Edition) 512 MB RAM, and 2 GB of hard drive space for installation.

Windows 10 compatible
Chrome browser logo

Avast recommends using
the FREE Chrome™ internet browser.