Password Strength Checker
- Use a longer password
About this Password Strength Checker
Check password strength and get actionable suggestions to improve security. The tool evaluates length, variety of characters (uppercase, lowercase, numbers, symbols), and common weak patterns to give you a strength score and tips. Use it to learn what makes a password strong and to test sample or dummy passwords—never enter a real password you use elsewhere. All checking runs in your browser; nothing is sent to a server. Ideal for security awareness, testing password policies, or verifying a new password before you commit to it on a signup form.
Key Features
Strength score so you see how your password rates
Suggestions to improve: add length, mix character types, avoid patterns
Evaluation of length and character variety (uppercase, lowercase, numbers, symbols)
Feedback on common weak patterns (e.g., sequences, repeated chars)
All checks run in your browser; no data sent to servers
Use test or dummy passwords only; never enter real credentials
How to Use
Type or paste a sample password (e.g., a test value similar to what you might use)
View the strength score and any suggestions shown
Apply the tips to improve the password (e.g., add symbols, increase length)
Use a password manager to store and generate strong passwords for real accounts
Popular Use Cases
Testing password policy: see if proposed rules produce strong enough passwords
Learning what makes a strong password: experiment with length and character mix
Checking before signup: test a new password idea without submitting it anywhere
Security awareness: demonstrate to teams or students how strength is evaluated
Tips & Best Practices
Never enter a real password. Use a similar fake one to test (e.g., same length and character types).
Prefer a password manager to generate and store strong, unique passwords for each account.
Aim for at least 12 characters with a mix of letters, numbers, and symbols; avoid dictionary words and personal info.
Frequently Asked Questions
Is my password sent anywhere?
No. Checking runs entirely in your browser. Nothing is sent to a server. Even so, do not enter a real password—use a test value only.
What makes a password strong?
Length (12+ characters), mix of uppercase, lowercase, numbers, and symbols, and avoiding dictionary words, sequences, or personal information.
Can I use this to check my company password policy?
Yes. Enter sample passwords that meet or break your policy to see how they score and what suggestions appear. Use the results to refine requirements.
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