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Regex Generator
Build and test JavaScript regular expressions with presets, visual blocks, or a pattern of your own. The description helper uses a small set of rules, not AI.
Pattern Editor
//gm
Test String
0 Matches
Block Builder
Add blocks to build a pattern
Quick Reference
Start Line ^
End Line $
Digit \d
Word Char \w
Whitespace \s
Any .
0 or more *
1 or more +
Optional ?
Capture (...)