Bitdefender Antivirus Free
Free tierby Bitdefender
Minimal-configuration antivirus with a top-rated engine.
- Highly rated detection engine
- Very low system impact
- Almost no configuration required
4 Best Free Alternatives to Norton AntiVirus
Norton AntiVirus is paid software from Gen Digital. These antivirus & security programs do the same job for free.
- 4 free alternatives
- 0 open source
- ₹0 to download
- All free antivirus & security
Free alternatives to Norton AntiVirus
Avast Free Antivirus
Free tierby Avast (Gen Digital)
Long-established free antivirus with real-time protection.
- Real-time virus and ransomware shield
- Malicious and phishing website blocking
- Wi-Fi network security scanning
AVG AntiVirus Free
Free tierby AVG (Gen Digital)
Lightweight free antivirus with web and email protection.
- Real-time malware detection
- Email attachment and download scanning
- Performance scan for junk files
Malwarebytes Free
Free tierby Malwarebytes
The standard second-opinion malware remover.
- Excellent adware and PUP removal
- Runs alongside your existing antivirus
- On-demand scanning in the free tier
Can free software really replace Norton AntiVirus?
Paid suites bundle extras such as VPN and identity monitoring, but for core malware protection the free tiers use the same detection engines as their paid counterparts.
Being honest about it: free alternatives are not always a feature-for-feature match, and anyone telling you otherwise is selling something. What they are is free — so the cost of finding out whether they cover your particular workflow is an hour of your time rather than a subscription.
The closest replacement: Bitdefender Antivirus Free
Bitdefender Antivirus Free pairs the detection engine that consistently scores at the top of independent AV comparison tests with a deliberately minimal interface. It is designed to install and then stay out of your way, making it a good fit for machines you maintain for other people.
- Highly rated detection engine
- Very low system impact
- Almost no configuration required
- Real-time threat defence
Full details on Bitdefender Antivirus Free →
All 4 free Norton AntiVirus alternatives compared
| Program | Licence | Platforms | Best known for |
|---|---|---|---|
| Bitdefender Antivirus Free | Free tier | Windows | Highly rated detection engine |
| Avast Free Antivirus | Free tier | Windows, macOS, Android, iOS | Real-time virus and ransomware shield |
| AVG AntiVirus Free | Free tier | Windows, macOS, Android | Real-time malware detection |
| Malwarebytes Free | Free tier | Windows, macOS, Android, iOS | Excellent adware and PUP removal |
The other options in detail
Avast Free Antivirus Free tier
Avast Free Antivirus provides continuous real-time scanning against viruses, ransomware and malicious websites at no cost. Notable for real-time virus and ransomware shield and malicious and phishing website blocking. Runs on Windows, macOS, Android, iOS.
AVG AntiVirus Free Free tier
AVG AntiVirus Free blocks viruses, spyware and other malware in real time, and scans links, downloads and email attachments before they can execute. Notable for real-time malware detection and email attachment and download scanning. Runs on Windows, macOS, Android.
Malwarebytes Free Free tier
Malwarebytes Free is an on-demand scanner that specialises in removing adware, browser hijackers, potentially unwanted programs and infections that traditional antivirus products routinely miss. Notable for excellent adware and pup removal and runs alongside your existing antivirus. Runs on Windows, macOS, Android, iOS.
How to choose
For the widest platform coverage, Avast Free Antivirus, AVG AntiVirus Free, Malwarebytes Free run on three or more operating systems. On a Mac, Avast Free Antivirus, AVG AntiVirus Free, Malwarebytes Free support macOS natively.
All 4 are free to download from the publisher's own website, so installing two or three and testing them on your own files is the fastest way to decide — it costs nothing but a few minutes.
Frequently asked questions
What is the best free alternative to Norton AntiVirus?
Bitdefender Antivirus Free is the closest match — minimal-configuration antivirus with a top-rated engine. If it does not suit your workflow, Avast Free Antivirus, AVG AntiVirus Free, Malwarebytes Free are worth trying.
Is there a free version of Norton AntiVirus itself?
Norton AntiVirus is commercial software from Gen Digital. The programs above are separate products that do the same job — not cracked or modified copies. We do not link to pirated software under any circumstances.
Are these safe to download?
Yes, provided you get them from the publisher. Every button above opens the software author's own official website — we host no installers.