检测密码强度并提供改进建议
Online password strength checking tool
Runs locally · Nothing uploaded
Our online password strength checker helps you evaluate the security level of your passwords through multi-dimensional analysis. The tool uses industry-standard algorithms to assess password length, character complexity, common patterns, and other factors, providing specific improvement suggestions to help you create more secure passwords.
The score considers password length, use of uppercase/lowercase letters, numbers, and special characters, as well as common weak password patterns. The system calculates entropy and compares against known weak password dictionaries to produce a 0-100 security rating.
Yes. Generated passwords are created using the browser's cryptographically secure random number generator (crypto.getRandomValues). They are never transmitted over the network and are generated entirely on your device, ensuring security and privacy.
No. All password analysis is performed locally in your browser and is never uploaded to any server. Data is cleared when you close the page, so you can use the tool with confidence.