Powerful, free anti-malware protection

We’ve packed the world’s largest threat-detection network and machine-learning malware protection into a single, lightweight malware scan and removal tool that won’t slow down your PC. And did we mention, it’s 100% free?

Avast Free Antivirus lets you:

Detect, remove, and block malware

Stop viruses, spyware, ransomware, and other malware threats in real-time. All the time.

Stay protected against even the newest threats

We push anti-malware updates to you automatically, so you’re always protected. Now that’s convenience.

Find browser threats and other vulnerabilities

Detect not only malware, but suspicious browser add-ons, outdated software, and other potential threats. Because you can never be too safe.

Enjoy safety in numbers

All 400+ million Avast users act as threat sensors for each other. When anyone encounters a previously unknown threat, we push a cure out to everyone — including you!

DOWNLOAD FREE ANTI-MALWARE

Get it for Android, iOS, Mac

DOWNLOAD FREE ANTI-MALWARE

Get it for iOS, Android, PC

INSTALL FREE PROTECTION

Get it for Mac, PC, Android

INSTALL FREE ANTI-MALWARE

Get it for PC, Mac, iOS

Like awards? So do we.
And we’ve got lots of ‘em

AV-Comparatives, one of the antivirus industry’s most prestigious testing labs, awarded Avast Free Antivirus “Product of the Year 2018”. That’s pretty much like winning the gold in the antivirus olympics — something we’re really proud of.

And that’s not all. Our trophy room is packed with awards from industry-respected sources, including:

AV Comparatives: 2018 Product of the Year

AV Comparatives: 3 stars, Advanced+ in malware removal, 2018

AV Comparatives: In Top 3 for least false positives, September 2018

AV Comparatives: 3 stars, Advanced+ in malware protection, September 2018

AV-TEST: Top Product, AV Test Certified, December 2018

PC Mag: Editors’ Choice, February 2019

The world’s most trusted anti-malware

But just don’t take our word for it.

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.

Zap Malware from your Mac or mobile, too

Think your Mac is infected? Afraid you’ve downloaded malware to your Android phone or tablet? Don’t panic. We’ve got you covered there, too.

Get our free Avast Security for Mac to scan for and remove malware and other threats from your Mac. Our real-time protection stops all kinds of malware — from viruses to ransomware — and even warns you of intruders on your Wi-Fi network.

Looking for free anti-malware for mobile? Just grab Avast Mobile Security for Android. It’s the leading anti-malware app on Google Play, with over 100,000,000 installs. It’s also loaded with other security features like Anti-Theft, Photo Vault, Web Shield, and more.