Saturday, September 14, 2013

Javascript - Password strength meter

Password Strength Algorithm

Password Length:
5 Points: Less than 4 characters
10 Points: 5 to 7 characters
25 Points: 8 or more

Letters:
0 Points: No letters
10 Points: Letters are all lower case
20 Points: Letters are upper case and lower case

Numbers:
0 Points: No numbers
10 Points: 1 number
20 Points: 3 or more numbers

Characters:
0 Points: No characters
10 Points: 1 character
25 Points: More than 1 character

Bonus:
2 Points: Letters and numbers
3 Points: Letters, numbers, and characters
5 Points: Mixed case letters, numbers, and characters

Password Text Range:

>= 90: Very Strong
>= 70: Strong
>= 50: Good
>= 30: Weak
>=  0: Very Weak


Please see the complete source code

Output
Type password in the input box and see the output

Password Strength

Download
Click here to download complete source code and image

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