Password Strength Checker
Find out how secure your password is and how to improve it.
What Makes a Password Strong?
Password strength depends on a combination of factors that together determine how difficult the password is to crack.
Length
Each additional character exponentially increases the number of possible combinations. A 12-character password is thousands of times more secure than an 8-character one.
Complexity
Combining lowercase and uppercase letters, numbers, and symbols dramatically increases the number of possible combinations.
Unpredictability
Random characters are much more secure than dictionary words or personal information like birth dates.
Uniqueness
Using a unique password for each account ensures that one leaked password doesn't compromise your other accounts.
How Hackers Crack Passwords
Understanding attacker methods helps you create more secure passwords.
Brute Force Attack
Systematically trying all possible character combinations. Modern GPUs can try billions of combinations per second.
Dictionary Attack
Using lists of common passwords and words. Passwords like 'password123' are cracked within seconds.
Rainbow Tables
Pre-computed hash tables for quick lookups. Effective against unsalted hashes.
Social Engineering
Obtaining passwords directly from users through phishing or manipulation. No password protects against disclosure.
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