Password Strength Checker
Security Tools
Check password strength
Password Requirements
Tips for a strong password
- • Use at least 12-16 characters
- • Mix uppercase, lowercase, numbers, and symbols
- • Avoid personal information and common words
- • Use a unique password for each account
How to Use
- 1. Enter a password in the input field
- 2. The tool will automatically analyze its strength
- 3. Check the requirements checklist for improvements
- 4. Aim for "Strong" with estimated crack time of years
Example / Use Case
Evaluate Password Security
A user wants to test if their commonly used password is secure. They enter it and discover it would take only minutes to crack.
Input
Password: "mypassword123"
Output
⚠️ Weak Password Estimated crack time: 2 minutes Issues: Too short, uses common patterns, no symbols
How It Works
Password strength checking uses multiple algorithms to evaluate security. The tool calculates entropy - the measure of randomness - and compares your password against known patterns, dictionary words, and common password lists. Modern cracking tools can test billions of passwords per second, so length and complexity are critical. A password like "password123" takes less than a second to crack, while a 16-character random password with all character types would take millions of years. Our checker also evaluates patterns like keyboard walks (qwerty), repeated characters, and sequential numbers. For generating strong passwords, use our Password Generator tool.
How to Use
- 1Enter your password into the input field
- 2View the strength meter showing current security level
- 3Read the detailed analysis and improvement tips
- 4Modify your password based on recommendations
Frequently Asked Questions
No, all analysis happens in your browser. Your password is never stored, transmitted, or saved anywhere.