Bitwarden

Bitwarden delivers enterprise-grade security for free, with audited open-source code that surpasses even paid alternatives in transparency and trust. It supports unlimited device sync for all users—a feature locked behind a $3/month paywall by top rival LastPass. Independent audits confirm its zero-knowledge encryption, and the platform spans 15+ browser extensions and mobile apps. For password sharing, the free tier includes two-person sharing, which is 100% more generous than LastPass's free offering, which limits sharing to one user. This combination of audited code, unlimited sync, and verified encryption makes Bitwarden the most secure free password manager available.