Password Comparison Tool
Compare multiple passwords side-by-side to find the most secure option. Analyze strength, entropy, and crack time to make informed decisions.
Enter Passwords to Compare
Type 2-5 passwords to compare their security strength
Enter at least one password to start comparing
Type passwords in the fields above to analyze their strength
How Password Comparison Works
Strength Calculation
We analyze password length, character variety (uppercase, lowercase, numbers, symbols), and complexity patterns to calculate an overall strength score from 0-100%.
Entropy Measurement
Entropy measures password randomness in bits. Higher entropy means more possible combinations and better security. We calculate this based on character pool size and password length.
Crack Time Estimation
We estimate how long it would take a powerful attacker (1 billion guesses per second) to crack each password using brute force attacks. Longer crack times indicate better security.