Regex Tester

Compile against the BEAM's own :re engine — exactly what your app runs.

pattern.exs
~r/ /

e.g. \A[a-z0-9-]+\z

function

Which Regex function to run

$
iex> result 
result = ""
visualization 

      

    

  



  

    

      
      
      
    


    

  
      

        

          
[abc]
one of a, b, or c

        

        

          
[^abc]
not a, b, or c

        

        

          
[a-z]
range a-z

        

        

          
[a-zA-Z]
range a-z or A-Z

        

        

          
^
start of line

        

        

          
$
end of line

        

        

          
\A
start of string

        

        

          
\z
end of string

        

        

          
.
any character

        

        

          
\s
whitespace

        

        

          
\S
non-whitespace

        

        

          
\d
any digit

        

        

          
\D
non-digit

        

        

          
\w
word character

        

        

          
\W
non-word character

        

        

          
\b
word boundary

        

        

          
(...)
capture group

        

        

          
(a|b)
a or b

        

        

          
a?
zero or one

        

        

          
a*
zero or more

        

        

          
a+
one or more

        

        

          
a{3}
exactly 3 of a

        

        

          
a{3,}
3 or more of a

        

        

          
a{3,6}
3 to 6 of a