Real-time strength analysis โ your password never leaves the browser.
Password is processed locally in the browser. Nothing is sent to the server.
Enter a password
Password Strength Checker Online
The service analyzes password strength directly in the browser: length, character set, entropy and presence of weak patterns (sequences, repeats, common words).
How Strength is Assessed
Entropy โ measure of unpredictability: bits = logโ(N^L), where N is the alphabet size, L is the length. Recommended โฅ 60 bits.
Length โ key factor; each additional character exponentially increases brute-force time.
Character classes โ lowercase, uppercase, digits, special characters expand the alphabet.
Patterns โ sequences (123, abc, qwerty), repeats (aaa) and dictionary words reduce actual entropy.
Recommendations
Use a password manager to generate random passwords of 20+ characters.
For memorable passwords โ a passphrase of 5+ random words (diceware).
Never reuse a password across multiple sites.
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