Example password validation regex
- rules below can be concatenated
^(?=.*?[^a-zA-ZÄÖÜäöüß0-9])(?=.*?[0-9])(?=.*?[a-zäöüß])(?=.*?[A-ZÄÖÜ])(?!.*\d{2,}).{8,}$
Special character matching
- Matches (operator is
?=) any string that has at least a special character e.g.: sadsds@asdasd
(?=.*?[^a-zA-ZÄÖÜäöüß0-9])
Number matching
- Matches (operator is
?=) any string that has at least a number: e.g.: s1adsdsasdasd
(?=.*?[0-9])
Small letter matching
- Matches (operator is
?=) any string that has at least a small letter: e.g.: SADSa
(?=.*?[a-zäöüß])
Big letter matching
- Matches (operator is
?=) any string that has at least a big letter: e.g.: SADSa
(?=.*?[A-ZÄÖÜ])
Consecutive numbers matching
- Doesn't match (operator is
?!) strings that have consecutive numbers in them: e.g.: asdasd42dada
(?!.*\d{2,})
Sequential numbers matching (cannot be used at the same time with previous rule)
- Doesn't match (operator is
?!) strings that have sequential numbers in them: e.g.: 12asdasd42dada
- It will allow numbers that are separated by other letters e.g.: adasd1asd2asd3
- It will allow consecutive numbers e.g.: ahadADS22dhsg44
(?!.*((12)|(23)|(34)|(45)|(56)|(67)|(78)|(90)|(01)))
Length of string matching (should be placed last)
- This will match any string that is less than 8 characters
.{8,}