What is a Password Strength Checker?
A password strength checker analyzes passwords for resistance to brute force, dictionary attacks, and pattern-based cracking. It evaluates length, character diversity, common patterns, and estimates crack time. All analysis runs locally — your password never leaves your device.
Frequently Asked Questions
Is my password sent to a server?
No. All analysis happens locally in your browser.
What makes a password strong?
12+ characters, mixed types, no dictionary words or common patterns, unique per account.
How is crack time estimated?
Based on password entropy assuming modern GPU hardware doing billions of guesses per second.