Avast Antivirus

Avast Antivirus is a family of internet security tools developed by Avast for Windows, macOS, Android, and iOS. The free tier bundles core protections most people actually need: real-time malware scanning, browser security, a firewall, anti-phishing filters, anti-spyware, and anti-spam features, all under a single interface.

Independent testing backs up the marketing. AV-TEST has repeatedly awarded Avast Free Antivirus full marks in its "Protection" category, with the software detecting 100% of malware samples used during evaluation and earning the "AV-TEST Certified" seal. Its mobile counterpart, Avast Mobile Security & Antivirus, has posted similarly strong results in independent Android malware testing by AV-Comparatives.

For users who want dependable virus protection without paying for a premium suite, Avast's free version remains one of the most tested and widely used options on Windows - a solid baseline layer of defense before you consider any paid add-ons.