Password Strength Checker
Type a password and see instantly how strong it is — and how long a hacker would need to crack it. 100% private: it never leaves your browser.
Limitation: this is a heuristic estimate of cracking difficulty — it does not guarantee any password is uncrackable. The best protection is a long, unique password with 2FA enabled.
📚 Password Safety FAQ
How long does it take to crack my password? The estimate assumes a hacker using powerful cracking hardware. A short password with only numbers can fall in seconds; a long random one would take centuries.
What is the strongest type of password? Length beats complexity. A 16-character random password, or a passphrase of four random words, is effectively uncrackable by brute force.
Is this checker safe to use with my real password? Yes — the analysis runs entirely in your browser using JavaScript. Your password is never transmitted, stored or logged.
Should I use the same password everywhere? Never. If one site is breached, hackers try that password on your email, banking and social accounts. Use a unique password for every site.
What should I do if my password appears in a data breach? Change it immediately everywhere you used it, and enable two-factor authentication on your important accounts.