Alow alphanumeric characters and spaces

This regex will match any Youtube video ID thrown at it and return one capturing group containing the ID.

A string with only numbers in

The following regular expression matches only letter a-z A-Z numbers 0-9 and a blank space for a given string.

sdfs sdfs FLBREV00022230 dsfsdfs sdfsf FLBREV00022234 In this case is false

This regex validates varying types of telephone numbers.

Validates a RFC3339 DateTime format. Does not validates the Data

This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...

This is just the demonstration from the front page.

Check for true or false street address format