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Head to head

Google Password Manager vs LastPass

An awkward pair: Google is free and convenient but not zero-knowledge by default, while LastPass is zero-knowledge but had every customer vault stolen in 2022 and limits free users to one device category. Neither is the strongest answer — this comparison usually ends with a third option.

Facts reviewed 2026-08-01. Every row below is sourced, and anything a vendor does not publish is marked as such rather than estimated.

The question that decides it

Neither default is compelling. Would you consider something else?

Choose Google Password Manager if

you want free, zero-setup, and accept Google holding the key unless you enable on-device encryption.

Choose LastPass if

you want client-side encryption and are willing to weigh the 2022 breach.

Side by side

Comparison of Google Password Manager and LastPass by security and account features
 Google Password ManagerLastPass
Storage modelCloud-synced vault tied to your Google AccountCloud-synced encrypted vault
Key derivationKey derivation sets how expensive each attacker guess is. A vendor that does not publish its parameters cannot be independently compared on this.Not published for the password vaultPBKDF2-HMAC-SHA256; 600,000 iterations is the current standard, but historic accounts carried much lower settings
Source codeChromium is open source; the account and server service is notProprietary
Independent auditsNo public product-specific independent audit report was found.Operates a trust centre and disclosure programme; no current full independent source-code audit report was found published.
Free tierIncluded with a Google AccountYes
Main free-tier limitNo paid tier or published item capRestricted to one device category — computers or mobile devices, not both
Account recoveryFollows Google Account recovery in standard mode. With on-device encryption, recovery uses your Google password, a device screen lock, or another signed-in device.Several paths depending on prior setup: a one-time recovery password cached in a previously used browser, mobile biometric recovery, and SMS recovery where configured.
PasskeysStores and syncs passkeys; Google accounts also support passkey sign-in.Stores website passkey private keys in the vault.
PlatformsDeepest on Android and Chrome. Available elsewhere through Chrome, but not a system-wide provider on Apple platforms.Broad browser extension, mobile and desktop coverage.
Documented incidents“None found” means no authoritative report surfaced during research. It is not a claim that no incident has ever occurred.None found in published sourcesAugust 2022: attackers stole source code from a developer endpoint, then used that to reach cloud backups — exfiltrating backups of all customer vault data along with an MFA/federation database and its decryption key. Encrypted fields stayed encrypted, but attackers gained unlimited offline attempts against every stolen vault, and vaults on older low-iteration settings were meaningfully exposed.

How Google Password Manager works

Passwords sync to your Google Account. Under standard encryption Google holds the key and can decrypt them for service functions; only with on-device encryption enabled does the key stay exclusively on your devices. It should therefore not be described as zero-knowledge by default.

Key derivation
Not published for the password vault
If you forget the master password
Recovery is possible — Follows Google Account recovery in standard mode. With on-device encryption, recovery uses your Google password, a device screen lock, or another signed-in device.

How LastPass works

A cloud-synced vault with client-side encryption of sensitive fields. Critically, in the backups stolen in 2022, some metadata — notably website URLs — was not encrypted.

Key derivation
PBKDF2-HMAC-SHA256; 600,000 iterations is the current standard, but historic accounts carried much lower settings
If you forget the master password
Recovery is possible — Several paths depending on prior setup: a one-time recovery password cached in a previously used browser, mobile biometric recovery, and SMS recovery where configured.
A third option

Both Google Password Manager and LastPass store your passwords. MoolKey does not.

Google Password Manager and LastPass differ in how well they protect a stored copy of your passwords. MoolKey answers a different question: it recalculates each password from your private phrase and the site name whenever you need it, so no copy exists to protect. A breach would expose masked account names and integers, not credentials.

That is a real trade, not a free win. There is no autofill, no import of your existing passwords, and no recovery if you forget your phrase — none, by design. your private phrase never reaches the service, so nobody can reset it or reproduce a password derived from it.

How it worksFull comparison

Google Password Manager vs LastPass FAQ

What is the main difference between Google Password Manager and LastPass?
Google Password Manager uses cloud-synced vault tied to your google account, while LastPass uses cloud-synced encrypted vault. An awkward pair: Google is free and convenient but not zero-knowledge by default, while LastPass is zero-knowledge but had every customer vault stolen in 2022 and limits free users to one device category. Neither is the strongest answer — this comparison usually ends with a third option.
Is Google Password Manager or LastPass more secure?
Security here is mostly about verifiable design rather than marketing. Google Password Manager uses not published for the password vault, which it does not publish in full. LastPass uses pbkdf2-hmac-sha256; 600,000 iterations is the current standard, but historic accounts carried much lower settings. Neither default is compelling. Would you consider something else?
Can I recover my account if I forget the master password?
Google Password Manager: Follows Google Account recovery in standard mode. With on-device encryption, recovery uses your Google password, a device screen lock, or another signed-in device. LastPass: Several paths depending on prior setup: a one-time recovery password cached in a previously used browser, mobile biometric recovery, and SMS recovery where configured.
Does Google Password Manager or LastPass have a free plan?
Google Password Manager: Included with a Google Account, though no paid tier or published item cap. LastPass: Yes, though restricted to one device category — computers or mobile devices, not both.
Has Google Password Manager or LastPass ever been breached?
Google Password Manager: no authoritative breach report was found during research, which is not the same as a guarantee that none has occurred. LastPass: August 2022: attackers stole source code from a developer endpoint, then used that to reach cloud backups — exfiltrating backups of all customer vault data along with an MFA/federation database and its decryption key. Encrypted fields stayed encrypted, but attackers gained unlimited offline attempts against every stolen vault, and vaults on older low-iteration settings were meaningfully exposed..

Sources

Every factual claim above traces to vendor documentation or published reporting. Where a vendor does not publish a figure, this page says so instead of repeating a number from a comparison table we cannot verify.

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