Proton Pass is a password manager that stores and autofills login credentials across devices and browsers. The product uses end-to-end encryption to protect stored data, ensuring that only the user can access their passwords and items. The password manager includes an integrated two-factor authentication (2FA) authenticator that stores and autofills 2FA codes. It supports passkeys as an alternative authentication method across all platforms to prevent phishing attacks. Proton Pass provides hide-my-email alias functionality that generates email aliases when users sign up for online accounts to protect their actual email addresses. The product includes Dark Web Monitoring that alerts users if their personal information appears in third-party data breaches, with support for monitoring multiple email addresses or domain names. The platform enables secure sharing of passwords, notes, credit cards, and entire vaults with other users, including those who do not use Proton Pass. Users can attach files to passwords, identities, or notes to store related information in one location. Additional features include password health alerts for weak and reused passwords, emergency access functionality that allows designated trusted contacts to access accounts in urgent situations, and the ability to organize items in vaults. Proton Pass is available on iOS, Android, Linux, Windows, and as browser extensions for Chrome, Safari, and Firefox. The product offers a free plan with unlimited password storage and a commercial plan with additional features.