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Download Avira Free Antivirus

Award-winning protection for Windows, Mac, Android, and iOS.

"Avira plugs the holes Windows Defender often leaves open"
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Award-winning technology that helps protect millions of users.

Free or Pro?

Your lifestyle. Your choice.

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Avira Free Antivirus

Protects you from malware
Download for free Download for free

Avira Antivirus Pro

- Protects you from malware
- Secures your shopping
- Blocks phishing attacks
- No ads & more
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The best antivirus

But don’t take our word for it — see our latest results from AV-Test

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Best performance

We offer ultra-light virus definition updates – with a footprint so small it doesn’t slow you down and hog your system’s resources.

Avira Headquarters, Tettnang, Germany

Security made in Germany

Avira is a member of IT Security Made in Germany—synonymous with quality and respect for your privacy. We don’t monitor what you do
nor share your private info with 3rd parties.

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Our technology

To stay ahead, our multi-layered security harnesses the power of cloud technology, machine learning, and artificial intelligence. And as all the analysis happens on our end, you get top protection with minimal system impact.

We protect you from all online threats — for free









Private by design: We don't sell your data.

Unlike most security vendors, Avira doesn't sell your data and never will. Nor do we share your data with 3rd parties such as government, Big Tech or advertising networks.

Made in Germany.
Downloaded by millions.

4.5/5 - Excellent

24,000+ reviews

And recommended by the industry

Rating: 4.5 stars

rated 4,5/5 on GOOGLE PLAY

520,600+ reviews

Rating: 4.1 stars

rated 4,1/5 in AppStore

300+ reviews

Rating: 5 stars

CNET Editor’s rating

Laptop, smartphone or tablet?

Secure all your devices with Avira


Discover Antivirus Profor Mac and Windows

Learn more about the following

What is adware?

Adware shows annoying or infected advertisements on your device without your permission and you get spammed with banners and pop-ups…

Learn about adware

What is malware and how can I stay safe online?

Visiting websites and downloading files makes your computer or mobile device vulnerable to threats and attacks…

Learn about malware

What is ransomware and why do I need ransomware protection?

Ransomware is malicious software that encrypts the hard disk of the infected system…

Learn about ransomware

What is phishing and why can it lead to ID theft?

Is that email from your bank? This technique uses deceptive emails and websites to gather personal information…

Learn about phishing

What is spyware and why is it “watching”?

Spyware is a software that secretly monitors you and collects data about you, your device, and your online activities…

Learn about spyware

Download free antivirus software for real-time protection

​Cybercriminals want your credit card details, passwords, and other personal information – and use malicious software like rootkits, keyloggers, and spyware to get them. Our free antivirus blocks all of them. The virus cleaner also protects you from DNS-hijacking, banking Trojans, botnets, and ransomware.

With Avira’s award-winning virus protection, hackers don’t stand a chance. Plus, you get a variety of privacy and performance tools, such as a free VPN, password manager, ad-blocker, software updater, and more.

Key features:

Free VPN for truly private and anonymous browsing. Secure your web traffic with end-to-end encryption and enjoy complete online freedom. 

  • Real-time virus protection keeps all known malware away from your devices: ransomware, spyware, adware, banking Trojans, and more. 

  • Software and driver updater. Obsolete software is a security risk, and it slows down your device. With Avira, you get seamless software updates with just one click. 

  • PUA shield blocks potentially unwanted applications from executing – over 122 million were blocked last year. 

Avira’s free antivirus software provides everything you need for a secure, private, and productive digital life. Our free antivirus is available for all platforms, and it’s 100% free: 

Protection for PCs and laptops

Protection for mobile devices

Avira's free antivirus provides complete virus protection and a variety of security, privacy, and performance tools. We combine artificial intelligence (AI), cloud technology, and our real-time virus scanner to keep your personal data safe from all types of malware, including Trojans, ransomware, spyware, and adware. You benefit from real-time antivirus protection and full device control.

The antivirus engine provides fast virus scans, and it is highly efficient, so the impact on system resources is minimal. You can scan external storage devices such as USB and external hard-drives, and schedule distinct types of scans to run regularly (full system scan, hard drive scan, rootkit scan, etc.). Our antivirus scanner also includes advanced repair functions and can repair infected files.

Avira provides real-time virus protection powered by AI. Join the millions of users being kept safe by our high-end, cloud-based virus detector. If a new threat is identified, all our users are immediately immunized against it – the cloud connection allows us to protect everyone within minutes. Avira Protection Cloud also detects never-seen-before threats and keeps you safe from Zero-Day-Attacks. 

How we protect your device from viruses: 

  1. The Protection Cloud finds a suspicious file. 

  1. The digital fingerprint of the file is uploaded anonymously to our Protection Cloud. 

  1. The file is checked and analyzed against our database online, in real-time. 

  1. The file is rated as safe or unsafe. 

  1. The information is sent back to the device. 

Millions of unknown files are analyzed by our antivirus software every day. The virus cleaner puts unsafe files in quarantine or deletes them. 

We have decades of experience in developing virus removal software, and we are proud to have millions of satisfied customers around the world. We regularly receive awards for the best security product, and we have some of the best overall performance speeds for our antivirus software, and the best repair capabilities to fix damaged files. 

Our virus scan is ultra-fast and doesn’t slow you down. We have the smallest virus definition updates in the industry, and you get free access to all Avira updates. We believe security and privacy are rights, not privileges, and we strive to offer the best protection for free. Each year, we block over 45 million infected sites, 3.6 million phishing attacks, and over 10 million ransomware attacks.

Designed for Windows, Mac, iOS, and Android, Avira Free Antivirus is the best free cybersecurity solution.

For even more features, you can try Avira Antivirus Pro or Avira Prime to benefit from: 

  • Advanced ransomware protection, powered by behavior-based analysis. It protects you from the newest ransomware threats, and instantly blocks unauthorized attempts to delete, alter or encrypt your files. 

  • Web protection blocks infected sites and phishing attacks, and scans all files accessed online.

  • Unlimited VPN for secure and anonymous browsing with Avira Prime.

  • Mail Protection scans all emails for infected attachments, phishing links, and spam.

  • VIP Customer Support via email and phone.

Download award-winning antivirus for free

Important: Your current Windows version is outdated and no longer supported.
For your security, we recommend switching to Windows 10 before downloading Avira software.
Update your Windows version here.
Wichtig: Ihre Windows-Version ist veraltet und wird nicht mehr unterstützt.
Zu Ihrer Sicherheit empfehlen wir Ihnen den Wechsel zu Windows 10 vor dem Download unserer Software.
Hier können Sie Ihr Windows aktualisieren.
Important: Votre version actuelle de Windows est obsolète et n’est plus prise en charge.
Pour votre sécurité, nous vous conseillons de passer à Windows 10 avant de télécharger le logiciel Avira.
Mettez à jour votre version de Windows ici.
Importante: Tu versión actual de Windows está desactualizada y ya no es compatible.
Por tu seguridad, te recomendamos que instales Windows 10 antes de descargar la solución de Avira.
Actualiza aquí tu versión de Windows.
Importante: La tua attuale versione di Windows è obsoleta e non è più supportata.
Per la tua sicurezza, ti consigliamo di passare a Windows 10 prima di scaricare i software Avira.
Aggiorna la tua versione di Windows qui.
Importante: Sua versão atual do Windows está desatualizada e não tem mais suporte.
Para sua segurança, recomendamos que troque para o Windows 10 antes de baixar o software da Avira.
Atualize sua versão do Windows aqui.
Важно: ваша версия Windows устарела и больше не поддерживается.
Из соображений безопасности перед загрузкой ПО Avira мы рекомендуем перейти на Windows 10.
Обновить Windows вы можете здесь.
Belangrijk: Uw huidige versie van Windows is verouderd en wordt niet meer ondersteund.
Voor uw veiligheid adviseren wij u om over te stappen op Windows 10 voordat u de Avira-software downloadt.
Update uw Windows-versie hier.
Önemli: Kullanmakta olduğunuz Windows sürümü eski ve artık desteklenmiyor.
Güvenliğiniz için Avira yazılımını indirmeden önce Windows 10 sürümüne yükseltmenizi öneririz.
Windows sürümünü buradan güncelleyin.
重要 : 現在お使いの Windows バージョンは古いため、サポートされなくなりました。
安全のため、Avira ソフトウェアをダウンロードする前に Windows 10 に切り替えることをお勧めします。
こちらより Windows バージョンをアップデートしてください
重要信息 : 您当前的 Windows 版本已过时,并且不再受支持。
为了安全起见,我们建议您在下载 Avira 软件之前切换到 Windows 10。
在此升级您的 Windows 版本
重要資訊 : 您當前的 Windows 版本已過時,並且不再受支援。
為了安全起見,我們建議您在下載 Avira 軟體之前切換到 Windows 10。
在此升級您的 Windows 版本