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Password Strength Tester
Analyze the strength of your passwords
Password to test
Your password is never sent over the Internet. Analysis is performed locally in your browser.
Password strength
Enter a password
Score
0/100
Length
0
Entropy
0 bits
Security requirements
At least 8 characters
At least one uppercase letter (A-Z)
At least one lowercase letter (a-z)
At least one digit (0-9)
At least one special character (!@#$%^&*)
Is not a common password
Estimated cracking time
Brute force attack:
Standard CPU (10⁹ attempts/sec)
-
GPU attack:
Powerful GPU (10¹² attempts/sec)
-
These estimates are theoretical and assume a pure brute-force attack. Real attacks often use dictionaries and common patterns.
Improvement suggestions
Enter a password to see suggestions
Strong password generator
Length
Options
A-Z
a-z
0-9
!@#$%
Exclude ambiguous (0,O,l,1)
Generate a strong password
Best practices
Do:
Use at least 12 characters
Mix uppercase, lowercase, digits and symbols
Use a unique password for each account
Use a password manager
Enable two-factor authentication (2FA)
Avoid:
Personal information (name, date of birth)
Common passwords (password123, qwerty)
Simple sequences (abcd, 1234)
Reuse the same password
Share your passwords