Best Free Antivirus in 2026
You don't have to pay for solid real-time protection. These five free antivirus tiers scored well in our lab tests without a subscription, though each trades away some extras you'll find in the paid suites.
The strongest free-tier detection in our tests, with the same core engine as the paid suite — just missing the firewall and unlimited VPN.
A free tier that's genuinely usable long-term, built on one of the most accurate detection engines we test.
One of the most widely used free antivirus products, with a capped but usable VPN thrown in.
Avast's sibling brand, offering nearly identical free-tier protection with its own bundle options.
Already installed on every Windows PC and free forever — a legitimate baseline if you want zero extra software.