A password manager is software that securely stores usernames, passwords, encryption keys, and other highly confidential information in an encrypted database or set of files. Data can be stored on the device running the software, on a remote server that can be accessed by any of the user's computing devices, or a combination of both local and remote. In order to encrypt/decrypt stored data, the user provides a master password that they previously established. There are many password manager applications on the market, some which are free and others which require an annual payment. Most programs integrate into one or more of the primary Internet browsers such as Chrome, Firefox, Safari, Internet Explorer, and Opera.
One of the key benefits of using a password manager is the ability to easily manage secure passwords that would otherwise be difficult to remember. Most managers provide functionality to generate and store secure passwords without the user's input. A URL can be stored with each password so that when the site is revisited the password manager can automatically provide the username and password to seamlessly login the user.
Top-rated password managers include:
Reference:
Best Password Managers for 2018 (PC Magazine)
Five Best Password Managers (LifeHacker)
Best Password Managers for PCs, Macs, and mobile devices (InfoWorld)