Security

The most secure password manager

A secure password manager keeps your logins encrypted on your device and never hands your master password or vault to a server. Here is how LegendPass does security that stays private by design.

A truly secure password manager encrypts your vault so that even its own company cannot read it. LegendPass is a secure password manager built on 256-bit AES encryption with zero-knowledge architecture: only encrypted data leaves your device, your master password never does, and your biometrics are processed entirely on-device.

What makes a password manager secure?

A password manager is secure when it is zero-knowledge and encrypted on-device. LegendPass encrypts your vault with 256-bit AES before anything is synced, derives your key locally from your master password, and keeps your biometric templates on your phone — so there is nothing useful for a breach to expose.

Encryption

256-bit encryption you can verify

Security you can point to, not just claim.

End-to-end encryptionYour secrets are encrypted with 256-bit AES-GCM before they leave the device; the server only ever holds ciphertext it cannot open.

Zero-knowledge architectureyour master password is never sent or stored, so LegendPass cannot read your vault — a key differentiator over browser-based password storage.

On-device biometricsFace, fingerprint, palm, and gesture templates never upload, so convenience never trades away privacy.

Open, honest claimsall security figures are stated plainly, and third-party research is cited to its source so you can verify it yourself.

Threat model

What a secure manager defends against

Breaches and credential stuffing target weak or reused passwords, not broken encryption. A secure password manager removes the human error that causes most cybercrime by generating strong, unique passwords and locking them behind strong local authentication.

Stops password reuse across accounts, the single biggest credential risk.

Prevents phishing from capturing your password — autofill only fills on the site it was saved for.

Protects you in a server breach, because the attacker only finds unreadable ciphertext.

Standards

Security you can measure against the leaders

Security propertyLegendPassTypical paid manager
Zero-knowledge encryptionYesYes
Biometrics processed on-deviceYesOften partial
Multi-biometric unlockPalm, finger, face, gesturesFingerprint or face only
Free unlimited-passwords planYesNo (capped or paid)
Private document & media vaultYesAdd-on or partial
FAQ

Frequently asked questions

Is a secure password manager actually safe?

Yes, when it is zero-knowledge and encrypted on-device. The main risk is password reuse and weak passwords, which a manager eliminates; the remaining risk is keeping your own master password and device safe.

Can LegendPass read my passwords?

No. LegendPass is zero-knowledge: your vault is encrypted on your device and the decryption key never leaves it, so we cannot read your stored logins even if our servers were compromised.

Related topics

More from the LegendPass library.

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The full vault, generator, and biometrics are free to try.

Google PlayApp StoreChrome & BraveFirefox

The LegendPass browser extension installs from the Chrome Web Store and works in Chrome, Brave, Edge, Opera, and every other Chromium-based browser — plus Firefox from the Firefox Add-ons store.