Avast Free Antivirus

Powerful, free security for you and your family.

FREE DOWNLOAD

Also available for Mac and Android too.

FREE DOWNLOAD

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

Free forever

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.

Easy or advanced

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.

Check for Viruses

Detect anything nasty, like viruses, malware, ransomware, ads, tracking, and outdated-software.

Scan your Home Network

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

Hijacked Browser?

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

Use Software Updater

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

Secure your Passwords

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

Run a Performance Scan

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

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

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."

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