Protect your digital life with Avast Free Antivirus, built to stop scams and malware before they reach you. It works quietly in the background, giving you real-time protection while you browse, shop, and work online.
With smart threat detection and powerful security features, Avast keeps your personal data safe without slowing your device.
Whether you're using a laptop or mobile, stay confident knowing you’re protected every moment. Download now and secure your online world instantly.
Avast runs continuously, scanning files, apps, and downloads instantly, blocking threats before they enter your system and cause any damage.
Avast uses intelligent analysis to detect unknown threats by monitoring suspicious behaviour, ensuring new malware is identified even without prior signatures.
Avast scans websites in real time, blocking phishing pages, harmful downloads, and unsafe links to keep your browsing experience secure always.
Avast automatically scans every file you open or download, preventing harmful programs from running and protecting your system from infections.
Avast observes application behaviour, stopping programs that act suspiciously, ensuring hidden threats cannot access sensitive data or harm your device.
Avast updates its threat database through cloud technology, providing real-time protection against newly discovered viruses and malware across the world.
Free
Free Antivirus
AI-powered Avast Assistant.
From $4.09/month
Avast Premium Security
Get advanced protection with powerful antivirus, plus:
From $4.09/month
Avast Ultimate
Get award-winning antivirus, plus anti-scam protection and guidance that’s powered by AI.
From $4.99/month
Avast SecureLine VPN
Help keep what you do online private from hackers, employers, and ISPs (internet service providers).
From $54.99/year
Avast AntiTrack
Strengthen your protection from online trackers
From $5.99/month
Avast Secure Browser PRO
Unlock the full potential of browsing! Enjoy the internet without limits or borders and don't leave any traces behind you.
From $5.99/month
Avast Secure Browser PRO
Unlock the full potential of browsing! Enjoy the internet without limits or borders and don't leave any traces behind you.
From $9.99/month
Avast Secure Identity
Our forward-thinking identity theft protection detects potential problems fast so you can act more quickly.
From $43.99/year
Avast BreachGuard
We can help you monitor your sensitive online information for potential data breaches and data leaks.
From $2.49/year
Avast PC Cleaner
Get your device back to running like new:
From $43.99/year
Avast Driver Updater
Fix crashes, boost performance, and help secure your Windows PC.
Virus Bulletin
VB100
AVLab
Internet Banking Protection Test
AV Test
Best Protection
SE Labs
Home Endpoint Security Test
Help block ISPs from tracking your activity, help avoid geo-restrictions from content providers, and ensure public Wi-Fi is safer with Avast’s Virtual Private Network (VPN).
Reclaim gigabytes of storage space and get your device working like new by removing junk like leftover files, bloatware, and unwanted programs. Avast Cleanup also updates your software automatically, hibernates resource-draining apps, and more.
You can start using Avast’s award-winning antivirus immediately. It’s quick and easy to install, and gives you all the protection you need to live your online life securely. And it’s totally free — so give it a try right now.
Avast scans files and activity instantly, blocking threats before they harm your system or data.
Avast monitors program behaviour to detect suspicious actions and stop unknown or emerging threats early.
Avast blocks malicious websites, phishing links, and unsafe emails to ensure secure online browsing.
Avast protects important files from unauthorised access, preventing ransomware attacks from locking your data.
Avast performs deep scans to detect hidden threats, vulnerabilities, and outdated software affecting security.
Avast removes junk files and optimises processes, helping your PC run faster and smoother daily.
I have been using Avast for months, and it keeps my laptop safe without slowing it down. The real-time protection works perfectly, and I feel secure browsing and downloading files online.
John Miller
⭐ 4.9/5
Avast is simple to install and very easy to use. It detects threats quickly and blocks suspicious websites instantly, giving me confidence while shopping and browsing on my device daily.
Emily Johnson
⭐ 4.5/5
I like how Avast runs quietly in the background without affecting performance. It regularly updates itself and provides strong protection against malware, making it a reliable antivirus solution for everyday use.
David Brown
⭐ 4.6/5
Avast helped me remove hidden malware that other tools missed. The scanning process is fast, and the interface is clean, making it easy to understand and manage security features efficiently.
Michael Davis
⭐4.6/5
The free version of Avast offers great protection without costing anything. It blocks harmful downloads and keeps my data safe, which makes it perfect for anyone needing basic security protection.
Rohit Singh
⭐4.6/5
Avast gives me peace of mind while working online. It protects against scams, phishing attacks, and viruses, ensuring my personal information stays secure and my system remains fast and stable.
Sarah Wilson
⭐ 4.6/5
Yes, Avast offers a free version that provides essential protection against viruses, malware, and online threats. It includes real-time scanning and basic security features, making it suitable for everyday use. However, premium versions are available with advanced tools like ransomware protection, firewall, and enhanced privacy features.
Avast is designed to be lightweight and efficient, so it runs smoothly in the background without significantly affecting performance. It uses minimal system resources while scanning and protecting your device. Most users experience little to no slowdown, even during active protection, making it suitable for both old and new systems.
Avast uses web protection technology to scan websites and detect phishing attempts or fake links. It blocks access to harmful pages before they load, preventing users from entering personal information on scam sites. This helps reduce risks related to identity theft, fraud, and malicious online activities.
Yes, Avast uses advanced behaviour analysis and AI-based detection to identify new or unknown threats. Instead of relying only on virus signatures, it monitors suspicious activity and blocks harmful behaviour. This allows Avast to protect your device from emerging malware that has not yet been officially identified.
Avast is available for Android and iOS devices, offering protection against malware, unsafe apps, and phishing attacks. It also includes features like app locking and privacy tools. This ensures your smartphone and tablet stay secure while browsing, downloading apps, or using online services daily.
Upgrading to Avast premium is beneficial if you need advanced security features like ransomware protection, firewall, VPN, and enhanced privacy tools. While the free version is strong for basic protection, premium plans offer complete security for users who want higher-level defence and additional performance features.