Its vision is to “progress toward a passwordless future," allowing you to store passkeys in the Google Password Manager service. Is It Safe to Store Passkeys in Google Password Manager? An external password manager allows you to sync your passkeys across devices, and they're bound to the password manager itself, rather than your device. How to Use Passkeys With Google Password ManagerGoogle would like you to believe that saving passkeys in the Google Password Manager happens almost magically. Google even says it can upgrade accounts stored in Google Password Manager automatically with passkeys.