Bitwarden

Bitwarden remains the top open-source password manager, offering a feature-rich free tier with unlimited device sync. Its self-hosting option gives privacy advocates full data control, and transparent third-party audits, including a 2023 Cure53 report, verify its security. 30% lighter than the runner-up in memory usage, it stores up to 50,000 entries per account, making it the most scalable choice for users who prioritize openness over the curated experience of #1 1Password.