Free & Open-Source Bitdefender Total Alternatives

Comprehensive security suite.

1. Bitdefender Free ↗ ★ PICKPRIVATE
   Free tier of Bitdefender antivirus.
   ●●○Medium · Different UI, similar features
2. Microsoft Defender ↗
   Built-in Windows antivirus — solid baseline.
   ●●○Medium · Different UI, similar features