A password manager is a programme used to store, amongst other things, login details, and which also helps to generate new and secure passwords. The programme easily links an account with a password for a specific website without the need to memorise them. It also allows credentials to be entered automatically when authentication is required. This is a much more secure way of storing login details than saving them in a web browser or writing them down in a notebook, and it makes it easy to use sufficiently complex passwords.
All passwords in the manager are encrypted and protected by a so-called master password, which is used to decrypt and unlock the password database. Consequently, only the person who knows the master password has access to the stored passwords.
A password manager may be available in the form of: