Password Strength Checker - Test Password Security
Check the strength and security of your passwords. Get instant feedback and recommendations to improve password security.
🔒 Your password is analyzed locally and never sent to any server
How This Tool Works
This tool analyzes your password in real-time and evaluates its strength based on multiple factors including length, character variety (uppercase, lowercase, numbers, symbols), and common patterns. The password is analyzed entirely in your browser and is never sent to any server, ensuring complete privacy. You receive instant feedback on how to improve your password's security.
Why Use This Tool
- ✓Real-time password strength analysis
- ✓Get specific recommendations to improve security
- ✓Check for common patterns and weak passwords
- ✓Completely private - passwords never leave your browser
- ✓Learn what makes a strong password
- ✓Free and unlimited use
Frequently Asked Questions
Is it safe to enter my password here?
Yes! All password analysis happens entirely in your browser using JavaScript. Your password is never sent to any server or stored anywhere. The tool is completely client-side for maximum privacy and security.
What makes a password strong?
A strong password should be at least 12 characters long and include a mix of uppercase letters, lowercase letters, numbers, and special symbols. It should avoid common words, personal information, and predictable patterns.
How is password strength calculated?
The tool evaluates multiple factors: length (8+ and 12+ characters), presence of lowercase letters, uppercase letters, numbers, special characters, and checks for common weak patterns. Each factor contributes to the overall strength score.
Should I use the same strong password everywhere?
No! Even strong passwords should be unique for each account. If one account is compromised, using the same password elsewhere puts all your accounts at risk. Consider using a password manager to store unique passwords securely.
What are common password mistakes to avoid?
Avoid using dictionary words, personal information (names, birthdays), common patterns (123456, qwerty), and simple substitutions (P@ssw0rd). Also avoid reusing passwords across multiple accounts.