Proton Pass is a privacy-focused end-to-end encrypted password manager developed by Proton AG, the Swiss company also behind Proton Mail, Proton VPN, and Proton Drive. Launched in 2023, it uses zero-knowledge, end-to-end encryption (with 256-bit AES-GCM) to secure your logins, passwords, passkeys, credit cards, identities, 2FA codes, notes, and even files — meaning only you can access your data, not Proton or anyone else. Based in Switzerland with strong privacy protections, it's fully open-source, independently audited, and features tools like a secure password generator, alerts for weak/reused passwords, dark web monitoring (on paid plans), and built-in hide-my-email aliases to protect your real email from spam and tracking.