Utilities macOS

Avast One Free Antivirus for Mac

Scan your Mac for malware, check suspicious messages with Avast Assistant, and inspect Wi-Fi weaknesses with Avast One's free antivirus tools.

macOSFree for personal, noncommercial use; proprietary EULA; optional paid premium features
Operating system
macOS 10.13 High Sierra or later
Architecture
Not specified in the inspected publisher sources
Download package
DMG online installer
Download Avast One for Mac (DMG)

Publisher lists at least 750 MB of disk space. Exact app version and processor architecture are unverified.

Link checked · Download guidance

What is Avast One Free Antivirus for Mac?

Avast One Free Antivirus for Mac combines malware scanning with tools for checking suspicious websites, messages and Wi-Fi networks. Its Scan Center offers full-Mac, targeted and external-drive scans, while real-time protection checks for threats in the background. Avast Assistant provides AI-powered guidance when an online offer or message looks suspicious.

The free antivirus is part of the Avast One app, rather than a promise that every tool in the app is free. Avast's Mac product page lists Wi-Fi intruder alerts, Ransomware Shield and the connected-inbox Email Guard among its premium capabilities. The optional Online Security browser extension adds website warnings and tracking controls separately.

The publisher lists macOS 10.13 High Sierra or later and at least 750 MB of disk space. The download linked here is the publisher's Mac online installer, served as avast_one_online.dmg; a specific application version and processor architecture were not established from the current publisher evidence.

What it offers

  • Run full-Mac, targeted-file, external-drive and scheduled malware scans.
  • Use real-time protection to check for malware in the background.
  • Check suspicious online messages and offers with Avast Assistant's AI-powered guidance.
  • Use Web Guard and Email Shield to help block malicious links and email attachments.
  • Inspect your Wi-Fi network and connected devices for vulnerabilities.

Good to know

  • Wi-Fi intruder alerts, Ransomware Shield and connected-inbox Email Guard are listed as premium capabilities on the Mac product page.
  • Online Security's additional browser warnings and tracking controls require the optional browser extension.
  • The consumer license permits personal, noncommercial household use, not business or institutional use.

Product images

Sources

References used for this listing. Retrieval dates do not indicate hands-on testing.

  1. End User License Agreement — version 1.16, revised January 23, 2026 ↗Retrieved
  2. Download Free Antivirus for Mac | Free Mac Virus Scan | Avast ↗Retrieved
  3. Avast Offline Installation Files | Avast ↗Retrieved
  4. Avast One Free Antivirus for Mac (Mac) - Download ↗Retrieved

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