What is a Password Strength Checker?
Most strength meters just count character classes: calling “P@ssw0rd2024” strong. Real attackers try common passwords, years, and word+digits patterns first, so those shapes are weak regardless of symbols.
This checker combines an entropy estimate with pattern detection (common passwords, years, sequences, repeats): analyzed entirely in your browser, never transmitted.
Frequently asked questions
Is it safe to type a password here?
Analysis is fully local: nothing is sent, stored or logged. Still, testing a look-alike rather than a real password you use is good hygiene anywhere.
What makes a password actually strong?
Length and randomness. 16+ generated characters, or 5+ random words. Human cleverness (@ for a) is in every cracking dictionary.
Why is my “complex” password rated weak?
Because it follows a pattern (word + year + symbol) that crackers enumerate early: complexity rules don’t defeat pattern search.
One strong password for everything?
No: reuse is the actual killer via breach credential-stuffing. A password manager plus unique passwords beats any single memorized string.