Password Strength Checker
See how strong your password really is and how long it would take to crack. Everything is checked in your browser, so your password never leaves your device.
About the Password Strength Checker
Our free password strength checker scores any password in real time as you type. It looks at length, the mix of character types, repeated characters and predictable patterns such as "abc123" or keyboard runs. It also compares your password with a list of commonly used passwords. You get a clear rating, an estimated crack time and specific tips to make it stronger.
Checking a password on a website can feel risky, so this tool is built to avoid the risk. The whole analysis runs inside your browser. Your password is never uploaded, logged or stored, and it works even if you go offline after the page loads. For best results, treat the score as guidance: a unique password from a password manager is always safer than one you have to remember. If you need a new one, use our Password Generator.
How to Check Your Password Strength
Step 1
Type or paste your password
Enter the password you want to test. It stays in your browser and is never sent anywhere. Use the show/hide toggle to check what you typed.
Step 2
Read your strength score
See the rating from Very Weak to Very Strong, an estimated crack time, and which checks passed, such as length, variety and common-password matches.
Step 3
Improve it
Follow the suggestions: make it longer, avoid predictable patterns, or use a passphrase. Test again until you reach Strong or better.
Frequently Asked Questions
Is it safe to type my real password into this tool?
Yes. The check runs entirely in your browser with JavaScript. Your password is never uploaded to a server, saved or logged.
How does the strength checker score my password?
It combines length, character variety, an entropy estimate, penalties for repeated, sequential and keyboard patterns, and a match against common passwords.
How long should a strong password be?
Aim for at least 12-16 characters, or a passphrase of four or more random words.
What does the estimated crack time mean?
It is a rough estimate of how long a brute-force attack would take at a fixed guess rate. Treat it as a comparison between passwords, not a guarantee.
Why is a long password of common words sometimes rated weak?
Attackers try dictionary words and well-known phrases first. Random, unrelated words are much stronger than a phrase people already know.
Can I use the checker to make a password?
It only tests existing passwords. Use our Password Generator to create one, then check it here.