REGEXLAB
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REGULAR EXPRESSION / DEBUG CONSOLE

Find the signal in the text.

Build JavaScript expressions, inspect every capture, and shape replacements live. Input stays inside this tab.

gi
JAVASCRIPT REGEXP · CTRL / ⌘ + ENTER TO RUN
01 / STATUS VALID
02 / MATCHES0
03 / COVERAGE0%
04 / RUNTIME0.00 MS
01

INPUT / UTF-8

Test text

0 CHARS · 0 LINES
LIVE INPUT
02

OUTPUT / HIGHLIGHTED

Match surface

WAITING 

          
 MATCHED RANGESELECT A MATCH BELOW

        

      


      

        

          

            
03
EXECUTION TRACE
Matches & capture groups

            0 RESULTS
          

          

        


        

          

            
04
TRANSFORM / TEMPLATE
Replacement preview

            
          

          
          
          
$&match$1group$<name>named$$dollar

          

          
0 CHARSPREVIEW ONLY · ORIGINAL UNCHANGED

        

      


      

        
COMMON PATTERNS / QUICK START
Load a known expression.
Samples replace current expression and text.