Password Strength Checker
Real-time password strength analysis with entropy, guess time estimation, and security suggestions.
About This Tool
A secure and reliable online password strength checker. It evaluates your password security through multi-dimensional analysis (length, character types, entropy) and provides targeted optimization suggestions. The tool includes a guess time estimation model to help you visualize your password's resistance to attacks. All analysis is performed locally in your browser, ensuring your password is never uploaded to any server.
Features
- 📊 Deep Analysis: Real-time calculation of entropy, character distribution, and strength level
- ⏱️ Guess Time: Estimate brute-force guess time based on current computing power
- 💡 Smart Suggestions: Provide targeted advice to improve password security
- 🔒 Privacy First: 100% local processing, password never leaves your browser
- 📱 Responsive: Perfectly adapted for mobile, tablet, and desktop