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Password Strength Tester
Test how strong your password is with real-time analysis.
Your password is tested locally and never sent to any server.
Password Security Tips
- • Use a unique password for each account
- • Consider using a passphrase (e.g., "correct-horse-battery-staple")
- • Use a password manager to generate and store passwords
- • Enable two-factor authentication when available
About this tool
Analyze password strength locally in your browser — entropy, estimated crack time, and a security checklist. Nothing is sent to a server.
Key Features
- ✓ Entropy & score
- ✓ Crack-time estimate
- ✓ Security checklist