Password Strength Checker
Check how strong a password is and see what makes it weak or hard to crack.
What actually makes a password strong
This estimates how resistant a password is to being guessed or brute-forced, and shows what is helping or hurting it. The honest headline, backed by the research, is that length beats complexity: a long passphrase of ordinary words is far stronger and far easier to remember than a short string of symbols, because every extra character multiplies the effort to crack it.
Type a password and see an assessment of its strength.
Test safely, and know the limits
Because the check runs entirely in your browser, the password you type is never sent anywhere — which is exactly how a strength checker should work, since typing a real password into a site that transmits it would be reckless. Two caveats: a strength meter cannot know if a password has already appeared in a breach, which instantly makes it worthless however complex it looks, and reusing even a strong password across sites is a serious risk. Unique, long, and never breached is the real standard.
Common questions
What matters more, length or symbols?
Length. A long passphrase of ordinary words is stronger and more memorable than a short, complex string of symbols.
Is it safe to type my real password in?
Here, yes — the check runs in your browser and nothing is sent anywhere. Never do this on a site that transmits what you type.
Does a high score mean a password is safe?
Not necessarily — a password exposed in a breach or reused across sites is unsafe however complex it looks.