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The best free antivirus — powered by you

Lightweight and intuitive protection powered by a community over 400 million strong.
This is next-gen cybersecurity for all.

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You want it all? Get the Avast Ultimate bundle

Ultimate Bundle

Save big and go for the best of Avast:

  • our most advanced antivirus
  • a privacy-shielding VPN
  • safe and simple password management
  • and our all-new powerful PC optimizer

Layer upon layer of awesomeness

Curious just how robust Avast security really is? Take a quick peek inside the many security layers that all of our PC antivirus products use to stop even the newest forms of malware.


Two new shields. Double protection

Stop even the most determined hackers from getting their hands on what’s yours. Webcam Shield protects your built-in camera from hidden spies. And Ransomware Shield ensures your files cannot be encrypted without your permission, so you don’t get held to ransom.

Discover more

Simple on the outside, smart on the inside

Avast Free Antivirus raises the bar on security with real-time protection, intelligent threat-detection, and added security for your network, passwords, and browser. Easy to install and easy to use, no other free antivirus comes close.

Intelligent Antivirus
Blocks malware, spyware, ransomware, phishing — your next-gen protection against cyber threats.
Behavior Shield
Stops suspicious behavior as soon as it starts — your zero-second protection against unknown threats.
Smart Scan
Detects unsafe settings and passwords, outdated apps and sketchy add-ons — your security gap sentinel.
Wi-Fi Inspector
Automatically finds weaknesses and sniffs out unwanted piggybackers — your home Wi-Fi network watchdog.
Browser Cleanup
Removes unwanted toolbars and privacy-endangering add-ons — your browser bloatware blaster.
Game Mode
Holds up notifications during your gaming session — your ‘most valuable’ playmate.
Analyzes suspicious files automatically, and pushes a cure to everyone if they’re a threat— your personal cyber doctor.
Manages all your accounts with one single, secure password — your trusted, reliable key holder.

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.


We are 400 million. Be our “plus one”

Our 400 million users are the 400 million reasons why we lead the digital security pack. Each Avast-loaded device is a source of real-time intelligence about new and current threats. That’s how we stop over 100 million of them every day. By joining Avast, you help to make that network even stronger.

Snapshot of real threat data

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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