The best free antivirus just got better

Free security has never been so lightweight, intuitive, and powerful.
This is next-gen cybersecurity for all.

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What’s new?

We've raised the bar on security again, with more intelligent features that makes threat-detection faster and more automation for advanced users - all within a seamless, intuitive interface.

Avast threat detection
Deeper malware protection
Uninterrupted gameplay
Fewer clicks

Business security with teeth

Stay focused on your endgame and leave your endpoint security to us. On-premise or cloud-based, we scale to your business — whatever its size, network or devices.

Avast mobile protection

On the move?
We can keep up

Your phone is your bank, office and arcade. Protect yourself with our leading mobile apps, so you can pay securely, email privately, and free up the space you need.


Next-gen cybersecurity for all

In the face of increasingly complex threats, cybersecurity must be faster and more powerful than ever. Stopping cyberattacks in real time is what we do.


Better protection — thanks to you

We stop every single unknown file and analyze it for malicious activity before it gets to you. Each of the 400 million devices running Avast acts as a sensor that feeds our threat-detection engines to create fixes in real-time. With their help, we stop over 76 million attacks every day.

When you join Avast, you're growing that network and making the internet a safer place.

Snapshot of real threat data

Award winning protection, whatever you choose

All our security products are fast, light and pack powerful features to give you the best protection that's easy to use and won't slow down your PC.

Your protection,
your way

Avast Free Antivirus Avast Pro Antivirus Avast Internet Security Avast Premier
Free Antivirus Essential
Pro Antivirus Expert
Internet Security Advanced
Premier Complete
FREE DOWNLOAD Download Download Download
Stop anything nasty Detect viruses, malware and more, even on your home network. yes yes yes yes
Capture emerging threats Real-time analysis of unknown files, so viruses can’t take you by surprise. yes yes yes yes
NEW Level up your gamingPlay with maximum power and no interruptions. yes yes yes yes
Forget your passwords Except one. Log in anywhere with your master password; we’ll remember the rest. yes yes yes yes
Spot fakes Make sure the banking site you’re visiting is the one you think it is.   yes yes yes
Shop till you drop Not till someone steals your details.   yes yes yes
Turn your network into a fortress Stop unwanted visitors from invading your privacy.     yes yes
Say “no thanks” to spam* Keep your inbox clean, lean and organized.     yes yes
Beat hackers – automatically Update your software without thinking about it.       yes
Shred before you sell Or lend, or repair. Ensure no one recovers the files you thought were gone.       yes
* Anti-spam is available as a separate, free download. FREE DOWNLOAD


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Free 30-day trial

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Free 30-day trial

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Compatible with Windows 10, 8.1, 8, 7, Vista, XP SP3

We don’t do this for the acclaim

We do this because we understand the importance of what we're protecting.
But don’t just take our word for it.

The most downloaded software

The best-selling security software

Antivirus with the lowest impact on PC performance

Official download partner

Join the world’s largest network.
We are Avast. We are next-gen cybersecurity.

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