Password Strength Checker
Test how strong your password is with entropy analysis, pattern detection, and dictionary checks.
Enter a password to check its strength
We analyze entropy, patterns, dictionary words, and overall security
What we check
Minimum Length
Checking if password has at least 8 characters
Character Complexity
Verifying mix of uppercase, lowercase, digits, and special characters
Pattern Detection
Scanning for repeated characters and sequential patterns
Dictionary Check
Checking against common words and known passwords
Overall Strength
Calculating entropy and overall password score
Learn More
Weak passwords are a leading cause of breaches. Learn how to measure password strength and enforce policies.
What Is Password Strength?
Password strength is a measure of how resistant a password is to being guessed or cracked. It takes into account length, character variety, pattern predictability, and whether the password appears in known breach databases. A strong password is one that would take an attacker an unreasonable amount of time to crack with current computing power.