A password generator tool is a tool that creates random, unique passwords for users. The purpose of a password generator is to help users create strong passwords that are difficult for hackers to guess or crack. Many password generator tools offer a range of customization options, such as the ability to specify the length of the password, the types of characters to include, and whether to exclude ambiguous characters (such as the number "1" and the letter "l", which can be difficult to distinguish). Some password generator tools may also include additional features such as the ability to create passwords that are easy for humans to remember, but still strong and secure. Password generator tools can be useful for a variety of purposes, such as creating passwords for new online accounts or updating the passwords for existing accounts to strengthen security.