Loading Tool Workspace...
Test password security, calculate entropy bits, and estimate brute-force crack time.
Evaluate how strong your password is in real time. Measures information entropy in bits, calculates estimated brute-force crack times, and provides actionable security recommendations.
Unlike traditional web tools that send your personal data, uploaded photos, or sensitive text to remote cloud servers, our Password Strength Checker operates strictly inside your client browser sandbox. This guarantees high processing speeds without network throttling, and ensures your data privacy is completely preserved.
Share Password Strength Checker with your colleagues, teammates, or friends!
Explore more tools to boost your productivity.
Evaluated locally in your browser. Passwords are never sent over the network or saved.