Regex constructor

Visual creation, testing and export of regex

Expression Builder
Current expression:
\d+
Reference
Character Description Example
\d Any digit \d{3} - три цифры
\w Letter, digit or _ \w+ - одно или больше слов
\s Whitespace character \s - пробел, таб и т.д.
. Any character .+ - one or more characters
[abc] Any of the characters [aeiou] - any vowel
[^abc] Any except these [^0-9] - not a digit
(...) Character group (abc)+ - "abc" one or more times
Regex editor
/ /
Test results
0 matches
✓ Expression is valid

Match details

# Match Position Length
No matches
Development code

                                            

                                            

                                                

                                            

                                            

                                                

                                            

                                            

                                                

                                            

                                            

                                                

                                            

                                        

                                    

                                

                                
                                

                                    
Export expression

                                    

                                        

                                            
                                            
                                        

                                        
                                        

                                            
                                            

                                                
                                                
                                            

                                        

                                        
                                        

                                            
                                            Save the link to return to your expression later                                        

                                    

                                

                            

                        

                    

                

                
                

                    

                        
How to use the regex constructor?

                        

                            

                                

                                    

                                        
Expression creation

                                        
    
                                            
  • Use the constructor to visually create regex
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  • Choose ready-made templates for typical tasks
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  • Add elements using the buttons
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  • Adjust quantifiers for repetitions
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Testing

                                        
    
                                            
  • Enter test text to check
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  • See highlighted matches in real time
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  • Analyze detailed information about each match
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  • Use flags to change search behavior
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Export code

                                        
    
                                            
  • Get ready-made code for 5+ programming languages
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  • Copy individual fragments or the entire code at once
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  • Save links to expressions
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  • Use in your projects
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Education

                                        
    
                                            
  • Learn regex with the built-in reference
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  • Analyze ready-made templates
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  • See the visualization of expression work
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  • Use examples for practice
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