XTools
Loading...
🔐 Password Strength Analyzer
Analyze password strength and estimate crack time using entropy calculationsPassword
Strength Score
0%
Strength
Crack Time Estimation
Duration to crack this password with brute force
Instantly
Analysis Details
Entropy:0.00 bits
Character set size:0
Password length:0
Score:0.0%
Usage Guide
Enter Password
Enter the password you want to analyze
View Analysis
Review strength score and crack time estimation
Check Details
Examine entropy, length, and character set details
Features
🔍Calculate password entropy and strength based on character set complexity
⏱️Estimate crack time using brute force attack simulation
📊Display detailed metrics including length, entropy, and character set size
🎯Human-friendly time format display (seconds to millennia)
Technical Introduction
What is Password Strength?
Password strength is a measure of how effectively a password resists guessing and brute-force attacks. It depends on length, complexity, and unpredictability of the password.
Entropy-based Analysis: Measures information content and unpredictability
Brute Force Resistance: Estimates time to crack using exhaustive search
Character Set Complexity: Considers variety of characters used
Security Best Practices
Best practices for creating and managing strong passwords
Use at least 12 characters with mixed case, numbers, and symbols
Avoid common patterns, dictionary words, and personal information
Use unique passwords for each account and consider password managers
Important Notes
• All password analysis is performed locally in your browser• Crack time estimates are based on brute force attacks only• Real-world attacks may use dictionary attacks or social engineering