3.🥉 Bitdefender - Lightweight cloud-based scanner (no slowdown during scans).

2.🥈 TotalAV - Excellent malware detection with limited device optimization.

1.🥇 Avira - Best free macOS antivirus in 2021.

Quick summary of the best free Mac antiviruses in 2021: I recommend Intego, which won the #1 spot on our list of the best paid antiviruses for macOS in 2021 and is available for a month-long free trial. But if you’re looking for comprehensive internet security protection, and you don’t want to fall victim to things like ransomware or advanced malware attacks, you’ll need to invest in a paid antivirus. If you only need simple scanning and basic malware protection, you only need a free antivirus. I’ve researched and tested all major antivirus software designed for Macs to find the best 100% free products available to help you stay protected. That’s why it’s important that you find a product that has been extensively tested and that is guaranteed to offer at least a basic level of protection without compromising your cybersecurity.

And there are also free antiviruses that are actually spyware in disguise, designed to steal user data. I tested every single free Mac antivirus program on the market, looking for software that could provide decent anti-malware protection for macOS without forcing users to upgrade to the premium version. Most antivirus brands that offer free products usually make you “pay” with intrusive ads, limited features, and serious vulnerabilities that leave you and your Mac unsecured. Download the free trial of 2021’s best Mac antivirus here. No scanning limitations, no ads, and no credit card needed. This is the only completely free trial version of a top premium Mac antivirus I could find. Intego is the best macOS antivirus out there - detecting and removing all viruses and malware and ensuring that all Macs stay fast, clean, and optimized.

Intego is the best Mac antivirus, and it’s got a 30-day free trial.

Download the best free Mac antivirus here. Avira provides excellent real-time malware protection, anti-phishing and malicious website filtering, system tune-up tools, a password manager, and even a VPN.

If you really need a free Mac antivirus, Avira is the best.

Short on time? Here’s the best free Mac antivirus of 2021:

Advanced mac cleaner virus removal