Avast’s virus scanner finds and removes viruses faster, more thoroughly, and more accurately than ever before.
We don’t just detect and delete existing viruses — we’ll stop them from infecting you again.
You’ll never be caught off-guard by new threats: Avast updates itself hundreds of times a day to ensure cutting-edge protection.
Antivirus security doesn’t begin and end with viruses. We also protect your PC from malware, bad browser extensions, outdated software, and other common risks.
Defend against phishing emails and malicious websites designed to trick you into disclosing sensitive personal data.
Get the world’s largest threat-detection network and machine-learning malware protection in a single, lightweight malware scan and removal tool — 100% free.
Avast Free Antivirus is powered by a world-class antivirus engine that’s been bringing in awards for years. Independent security testing labs and reviews agree that Avast’s online and offline cybersecurity protection is among the best in the world.
Avast Free Antivirus won PCMag’s coveted Editors’ Choice award for 2021, and our trophy room is packed with awards from industry-respected sources, including:
PCMag: Editors’ Choice, 2021
AV Comparatives: Top Rated Product Award, 2020
AV-TEST: Top Product, AV Test Certified, 2020
AV Comparatives: 2018 Product of the Year
AV Comparatives: Advanced+ in malware protection and removal, 2018
But don’t just take our word for it.
The UI for your software - amazing. Great work over the years. Can't say enough good things!
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.
I’ve been using Avast for over a year and have found it one of the best free software protection devices on market.
We also protect every device that needs virus security, including your Mac and mobile device (which are in danger of infection, too).
Avast’s Mac security software is powered by one of the world’s strongest threat-detection networks — defending and optimizing your Mac to keep it safe from viruses and other malware.
Get Android antivirus protection from Avast to check for viruses and remove them from your phone. We’ll also safeguard your Wi-Fi network connection and defend your phone with the same world-class cybersecurity we bring to PCs and Macs.
There’s no better way to find and destroy viruses than Avast Free Antivirus.
And because it’s entirely free, it’d be far costlier not to have it protecting you.
The easiest way to scan for viruses and clean phone viruses is with a free virus removal tool, like Avast Free Antivirus. Download and install our online virus checker, then perform a quick virus scan to detect and remove viruses from your PC.
Our detailed guides will show you how to clean your computer of viruses, how to clean viruses from your laptop, and how a phone virus checker can protect your mobile devices:
Protect your Mac and clean phone viruses with our free virus checkers:
You should perform virus scans and use malware removal software on all your devices. Any device that can go online can get viruses or other types of malware. This means that your Mac and phone may be vulnerable to viruses.
While Android devices are more likely to get infected than iPhones or iPads, iOS devices are vulnerable to other security threats. Removing adware and protecting against ransomware are important for any device.
A virus scan checks your computer or mobile device for viruses, worms, and other types of malware. Many online virus checkers look for known viruses, while some — including Avast Free Antivirus — can detect signs of unusual behavior that may indicate new types of malware.