A password manager is a program that manages passwords like a list in a safe. The advantage of a password manager is that you no longer have to remember passwords. Thus, passwords can be longer and more complicated, which also makes them more secure. As a result, users only need to know the master password to access this safe. The master password must therefore be particularly strong, as it grants access to all other passwords.
Most browsers currently in use offer an integrated password manager. Access data for websites can simply be stored in the browser and when the corresponding page is opened, only the master password is requested.