Use this free password strength tester to evaluate the strength of your passwords.Â
This password strength tester was created by the team at University of Illinois at Chicago (UIC).Â
Free Password Strength Tester
This password strength tester runs on your local machine and does not share, save or send your password over the network.
Additions | Type | Rate | Count | Bonus |
---|---|---|---|---|
Number of characters | Flat | +(n*4) | ||
Uppercase letters | Cond/Incr | +((len-n)*2) | ||
Lowercase Letters | Cond/Incr | +((len-n)*2) | ||
Numbers | Cond | +(n*4) | ||
Symbols | Flat | +(n*6) | ||
Middle numbers or symbols | Flat | +(n*2) | ||
Requirements | Flat | +(n*2) |
Deductions | Type | Rate | Count | Bonus |
---|---|---|---|---|
Letters only | Flat | -n | ||
Numbers only | Flat | -n | ||
Repeat Characters (case insensitive) | Comp | - | ||
Consecutive uppercase letters | Flat | -(n*2) | ||
Consecutive lowercase letters | Flat | -(n*2) | ||
Consecutive numbers | Flat | -(n*2) | ||
Sequential letters (3+) | Flat | -(n*3) | ||
Sequential numbers (3+) | Flat | -(n*3) | ||
Sequential symbols (3+) | Flat | -(n*3) |
Legend |
---|
Exceptional Exceeds minimum standards. Additional bonuses are applied. |
Sufficient Meets minimum standards. Additional bonuses are applied. |
Warning Advisory against employing bad practices. Overall score is reduced. |
Failure Does not meet the minimum standards. Overall score is reduced. |
Additional points are given for increased character variety. Final score is a cumulative result of all bonuses minus deductions. Final score is capped with a minimum of 0 and a maximum of 100. Score and Complexity ratings are not conditional on meeting minimum requirements.
- Flat
- Rates that add/remove in non-changing increments.
- Incr
- Rates that add/remove in adjusting increments.
- Cond
- Rates that add/remove depending on additional factors.
- Comp
- Rates that are too complex to summarize. See source code for details.
- n
- Refers to the total number of occurrences.
- len
- Refers to the total password length.
Password Requirements
- Must be at least 8 characters long
- Must have at least 1 capital letter, 1 lower case letter, and 1 number or punctuation, but no spaces
- Cannot be based on your name, netid, or on words found in a dictionary
- Cannot be based on simple repeating patterns
Password tips
- Never share your password or send it in email
- Choose a password as long as possible
- Use a varied combination of upper and lower case letters, symbols and numbers
- Use a unique password for every unique service
- Consider using a password manager such as KeePass or LastPass
- Visit http://password.accc.uic.edu to change your ACCC Common Password