Password Strength Checker — Score It Free Online
Check how strong a password is — length, character variety and estimated crack time — scored only in your browser. Your password is never sent anywhere.
Password Strength Checker
Check how strong a password is — length, variety and estimated crack time. Checked only in your browser.
- Strength
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- Estimated crack time
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- How to improve
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Your password is never sent anywhere. Use the Strong Password Generator to make a better one.
How to use it
- Type a password in the box.
- Read its strength, estimated crack time and tips.
- Generate a stronger one with the Strong Password Generator.
Frequently asked questions
Is it safe to type my real password here?
Yes — the check runs entirely in your browser and the password is never transmitted or stored. Close the tab and it is gone.
What makes a password strong?
Length first (16+ characters), then a mix of upper/lowercase, numbers and symbols, and uniqueness per site.
How is crack time estimated?
From entropy: the number of possible combinations divided by a guessed cracking speed. Longer, varied passwords grow exponentially.
My password scores “weak” — now what?
Use the Strong Password Generator on this site to make a random 16+ character password, and save it in a password manager.
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