Password Strength Checker
Check how strong your password is. Get instant feedback and security recommendations.
Your password is not sent anywhere. All checking happens locally.
Enter a password above to check its strength
Need Advanced Features?
Visit Karuvigal.com for power user features
- Batch password strength analysis
- Common password database checking
- Breach detection against known leaks
- Detailed entropy calculation
- Custom security policy enforcement
- Password policy compliance checking
Opens in new tab • Completely free • No sign-up required
Understanding Password Strength
Password strength indicates how resistant a password is to guessing and brute-force attacks. Our checker analyzes multiple factors including length, character variety, patterns, and common weaknesses to give you an accurate strength assessment.
A truly strong password should be at least 12 characters long and include a mix of uppercase letters, lowercase letters, numbers, and symbols. It should avoid dictionary words, common patterns (like "12345" or "qwerty"), and personal information that could be guessed.