← utilities

Regex Tester

Pattern, flags and a test string. Live JavaScript matches in this tab.

Flags

Highlight 

            

            

              0 matches
              
    
            
    

    
        
    
      
    
      
    
        
    How to use it
    
        
      
          
    1. Paste the pattern and the test text.
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    2. Set flags if you need them.
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    3. Read the highlights and the list of matches.
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    Common uses
    
        
    Test a pattern before you use it in code. Find why a match fails.
    
        
    Privacy
    
        
    Your text stays in this browser. Nothing is uploaded. Refresh and it's gone. We do not see it.