Encryption
AES-256
Ranked by encryption strength, zero-knowledge architecture, breach detection, cross-platform support, and pricing.
Free
Premium $1/mo
Fully open-source with third-party audited codebase. Zero-knowledge encryption with AES-256 and PBKDF2 SHA-256. The free tier covers unlimited passwords and devices, making it the most generous no-cost option available. Self-hosting available for organizations that need complete data sovereignty and compliance control over their credential vault.
Encryption
AES-256
Open Source
Yes
Passwords
Unlimited
Tier
Free
$2.99
/mo (billed annually)
Polished cross-platform experience with Watchtower breach monitoring. Uses end-to-end AES-256 encryption with a unique Secret Key that protects data even if your master password is compromised. Travel Mode lets you remove sensitive vaults from devices before border crossings.
Encryption
AES-256
Extra Layer
Secret Key
Breach Alerts
Yes
Privacy
Travel Mode
Free
Plus $1.99/mo
Built by the Proton Mail team with Swiss privacy law protection. End-to-end encrypted with open-source apps across all platforms. Integrated alias creation hides your real email address during sign-ups, reducing phishing risk. Passkey support included from launch for next-gen authentication.
Encryption
AES-256
Jurisdiction
Switzerland
Open Source
Yes
Passkeys
Yes
Our rankings are compiled by our editorial team from vendor documentation, published independent audits, and our own hands-on use across Windows, macOS, iOS, and Android. We do not accept payment for higher placement. Services are scored across five equally weighted categories:
Last updated: May 2026. See full methodology.
This page is compiled by our editorial team from vendor documentation, published independent audits, and our own hands-on use, not automatically generated. See our editorial standards & corrections policy, the methodology behind these rankings, or report an error.