Password Strength Checker – Security Test
Check password strength and get security recommendations. Analyze entropy, common patterns, and breach databases.
Our Password Strength Checker evaluates your password's strength in real time. It checks length, character variety (uppercase, lowercase, numbers, symbols), and common patterns to help you create stronger passwords.
All checking happens in your browser. Your password never leaves your device. Use it to improve security before creating accounts or changing passwords.
Features
- Real-time strength scoring
- Checks length, complexity
- 100% client-side
- No server uploads
- Free with no limits
How to Use
Type or paste your password in the input field.
View the real-time strength score and feedback.
Follow suggestions to improve weak passwords.
Use a password manager for strong, unique passwords per site.
Frequently Asked Questions
Is my password sent to a server?
No. Checking happens entirely in your browser. Your password never leaves your device.
What makes a strong password?
Length (12+ chars), mix of uppercase, lowercase, numbers, symbols, and avoiding common words or patterns.
Should I reuse passwords?
No. Use unique passwords per site. A password manager helps generate and store them securely.