Online random password generation tool - (V2.0) revised features: 1. Increase the difficulty level of passwords to four groups, ranging from numbers + lowercase letters, numbers + uppercase letters, numbers + uppercase and lowercase letters, and numbers + uppercase and lowercase letters + symbols, selected according to different password requirements. 2. Click the button to refresh a new set of passwords. The page does not need to be refreshed, which improves user experience. This tool will not be updated later and can basically meet our password security needs. Demo address: http://www.cnyinxingshu.com/tool/password/