Password Strength Meter
Get a real-time strength score with feedback on length, character variety, patterns, and common weaknesses — all client-side.
Analyzed locally — your password is never transmitted or stored.
How to use the Password Strength Meter
-
Type your password.
-
Review the strength score and feedback.
-
Adjust until you reach a strong rating.
What makes a password strong?
Strength depends on length, character variety, and unpredictability. An 8-char alphanumeric password is weak; a 16-char passphrase with mixed case and symbols is strong. This meter checks length, character class diversity, common patterns, and common passwords — all analyzed locally.
Key features
- Real-time strength score (0–100)
- Entropy estimate in bits
- Character class detection (lower, upper, digit, symbol)
- Common pattern and dictionary word warnings
Frequently asked questions
Is my password sent anywhere?
No. All analysis happens entirely in your browser. Your password is never transmitted or stored.
What's a good score?
Aim for 70+ (Strong) with at least 12 characters and 3+ character classes.
Can this check if my password was leaked?
No — this is a local strength estimator. Use 'Have I Been Pwned' for breach checks.