Its important to use uncommon, hard guess, strong and different password for different account. A good password is combination of uppercase letters, lowercase letters, numbers and special characters (like @ # $ * &).
You can use some free sites which can help you to generate passwords online. Below is list of few similar sites:
- MakePassword: One of the easiest online password generators which can generate a single random password or lists of hundreds of random passwords. You choose the character sets, password length and the quantity to create. Hash values can also be created for your convenience.
- OnlinePasswordGenerator: site generates random passwords based a mixture of actual dictionary words, random letter case, numbers and symbols.
- Online Password Generator: This small web application allows users to create random secure passwords that are difficult to guess because of the combination of lower and upper case letters, numbers and symbols.