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Regular Expression Details

Title Test Find Strong Password
Expression
^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9])(?!.*\s).{8,20}$
Description
Password between 8 and 20 characters; must contain at least one lowercase letter, one uppercase letter, one numeric digit, and one special character, but cannot contain whitespace.
Matches
Abc1234# | abcD$123 | A1b2&C3!
Non-Matches
abcd1234 | AbCd!@#$ | Abc 123#
Author Rating: Not yet rated. Jay French
Source
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