Check how strong your password really is. Type a password to get an instant score, a live strength meter, an estimated crack time, and specific tips to make it stronger. Free, no sign-up — and everything runs locally, so your password is never uploaded or stored.
Your password is analyzed only on this device. Nothing is sent over the network, stored, or logged.
How to use the Password Strength Checker
- Type any password into the box — the score updates live as you type.
- Read the strength label, the entropy estimate, and the estimated crack time.
- Follow the improvement tips to turn a weak password into a very strong one. Use Show to reveal what you typed.
Frequently asked questions
How is the score calculated?
Points are awarded for length (8, 12, 16, and 20 or more characters) and taken away for using only one or two character types, for common passwords, for keyboard sequences like 123 or qwe, and for repeated characters like aaa.
What does the crack time mean?
It estimates how long a brute-force attack at ten billion guesses per second would need, based on the password’s entropy. Real attackers are often slower, but targeted attacks can be faster — treat it as a rough guide.
Is it safe to type my real password here?
Yes. The check runs entirely in your browser. Your password is never transmitted, stored, or logged anywhere.