Free Password Strength Checker
Check password strength instantly. Analyze security and get recommendations.
Enter Password
Enter a password to check its strength
How to Use the Password Strength Checker
Check your password strength in seconds:
- Enter or paste your password into the input field
- Review the strength score, level, and detailed analysis
- Follow the suggestions to improve your password security
What Makes a Strong Password?
A strong password has several key characteristics:
- Length: At least 12-16 characters (longer is better)
- Variety: Mix of uppercase, lowercase, numbers, and special characters
- Avoid: Common words, personal information, patterns, and sequences
- Uniqueness: Different password for each account
Password Entropy Explained
Entropy measures password randomness and unpredictability. Higher entropy means stronger passwords:
- Low (< 28 bits): Easily crackable, avoid for any important accounts
- Medium (28-35 bits): Acceptable for low-security accounts only
- High (36-60 bits): Good for most accounts including email and social media
- Very High (60+ bits): Ideal for banking, crypto, and high-security accounts
Password Security Best Practices
Follow these practices to keep your accounts secure:
- Use unique passwords for each account to prevent credential stuffing attacks
- Aim for 16+ characters for important accounts (email, banking, crypto)
- Use a password manager to generate and store strong, unique passwords
- Enable two-factor authentication (2FA) whenever possible
- Change passwords immediately if a service you use reports a data breach