In one sentence: A password manager is an app or tool that creates, stores and fills in your passwords for you.
Why it matters: It lets each account have its own strong password, so you do not have to remember them all. Many phones and web browsers already have one built in. Other password managers are separate apps, and some of those are free.
One thing to do: Check whether your phone or browser has a password manager, and turn it on for your main email account.
Related terms: master password, encryption, passkey
Learn more: What Is a Password Manager, and How Do You Choose One?
Checked: 25 Oct 2026. Settings screens change. If yours looks different, search the company's help page.
