Password Strength Checker
Type or paste any password to instantly see how strong it is. Get a clear score with feedback on length, character variety, and patterns — all checked in your browser only.
Password Strength Checker
Live score, validation, checklist, and copy support.
Enter a password to start.
Security checklist
Empty input keeps all uncheckedSuggestions
- Type or paste a password to check its strength.
What this tool does
This tool analyses your password locally in the browser. It checks character count, variety of character types, presence of common patterns, and repetition. The result is a strength score with actionable feedback so you know exactly what to improve.
When to use it
Use this before setting a password on a new account, after changing a password, or when auditing old accounts you want to secure. It is especially useful after generating a password to confirm it meets your required strength level.
Frequently Asked Questions
What does the password strength checker measure?
It analyses your password's length, character variety (uppercase, lowercase, numbers, symbols), and patterns like repeated characters or common words, then gives it a strength score from weak to very strong.
Is my password sent to a server?
No. This tool runs entirely in your browser. Your password never leaves your device and is not stored or logged anywhere.
What score should I aim for?
Aim for a 'Strong' or 'Very Strong' rating for any account that holds personal data, financial information, or sensitive business data. For low-risk accounts, 'Medium' may be acceptable.
Why does a long password score higher?
Length is the most important factor in password strength. Each additional character exponentially increases the number of combinations an attacker must try, making brute-force attacks much harder.
What should I do if my password scores weak?
Use the Password Generator tool to create a stronger replacement. Aim for at least 12 characters with a mix of uppercase, lowercase, numbers, and symbols.