Password Strength Checker
Analyze password strength with crack time estimates and suggestions
About Password Strength Checker
Password Strength Checker analyzes your passwords to evaluate their security resilience against modern cracking techniques. It provides instant feedback on vulnerability levels, estimated crack times, and actionable recommendations to help you create stronger passwords that protect your accounts from unauthorized access.
This tool is perfect for security-conscious individuals, IT professionals, and anyone looking to audit their password practices. All analysis happens locally in your browser-your passwords never leave your device, ensuring complete privacy while you strengthen your digital security.
How to use Password Strength Checker
Enter Your Password
Type or paste the password you want to test into the input field. Your data stays local and never gets sent anywhere.
View Instant Analysis
Immediately see your password's strength level, crack time estimate, entropy score, and detailed security metrics.
Apply Recommendations
Read the personalized suggestions and modify your password using the feedback to achieve maximum strength.
Pro Tips
- Use at least 12 characters with a mix of uppercase, lowercase, numbers, and special symbols for maximum strength.
- Avoid predictable patterns like birthdays, sequential numbers, or common dictionary words that crack faster.
- Test different password variations to see how each character type impacts your overall strength score.
- Create unique passwords for each important account rather than reusing the same password across multiple sites.
Key features of Password Strength Checker
Crack Time Estimation
Get realistic estimates of how long it would take to crack your password using current computational power.
Real-time Strength Meter
Visual feedback instantly shows your password's security level from weak to very strong as you type.
Character Pattern Analysis
Detects weakness patterns like sequential characters, repeated letters, and common dictionary words.
Security Recommendations
Receive specific, actionable suggestions to improve your password strength and security.
Entropy Calculation
View the mathematical entropy score that determines the true randomness and unpredictability of your password.
Multiple Format Support
Analyze passwords with any combination of uppercase, lowercase, numbers, and special characters.
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