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Password Strength Estimator

Check password strength, length, character classes, and common patterns.

Password analysis will appear here.

Password Strength Estimator – Check Password Security

Password security is fundamental to protecting online accounts, yet many people use weak passwords that can be easily guessed or cracked. The Password Strength Estimator by ToolfolioHub provides comprehensive password analysis using multiple criteria and the zxcvbn algorithm to estimate how secure your password really is.

Whether you're creating a new password, checking an existing one, or understanding password security principles, this tool provides detailed feedback and cracking time estimates.

What Makes a Strong Password?

Strong passwords typically have:

  • Length: At least 8 characters (12+ recommended)
  • Character Variety: Mix of uppercase, lowercase, numbers, and symbols
  • Uniqueness: Not found in common password lists
  • Randomness: Not based on personal information or patterns

Key Features

1. Multiple Security Checks

Analyzes passwords based on:

  • Minimum length (8+ characters)
  • Uppercase letters
  • Lowercase letters
  • Numbers
  • Special characters
  • Common password avoidance

2. zxcvbn Algorithm Integration

Uses Dropbox's zxcvbn algorithm to:

  • Estimate cracking time
  • Detect common patterns
  • Identify dictionary words
  • Provide security score (0-4)

3. Detailed Feedback

Provides specific suggestions for improving password strength, including what's missing and how to strengthen the password.

4. Real-Time Analysis

Analyzes passwords as you type, providing instant feedback without needing to submit.

Password Strength Levels

  • Weak: Easily guessed or cracked in seconds/minutes
  • Moderate: Can be cracked with moderate effort (hours to days)
  • Strong: Requires significant time and resources to crack (years)
  • Very Strong: Extremely difficult to crack (centuries)

How to Create Strong Passwords

  • Use Passphrases: Combine multiple random words (e.g., "CoffeeMountainSunset42!")
  • Add Complexity: Mix character types and add numbers/symbols
  • Avoid Patterns: Don't use keyboard patterns (qwerty, 12345)
  • Use Unique Passwords: Different password for each account
  • Consider Password Managers: Generate and store strong passwords securely

Conclusion

The Password Strength Estimator helps you create and verify strong passwords with comprehensive security analysis. By checking multiple criteria and using the zxcvbn algorithm, it provides accurate feedback on password security and helps protect your online accounts.