Regex Builder

Build regular expressions visually using checkboxes and selection controls

How to Use Regex Builder

  1. Select anchors if needed (start ^ / end $), and choose character classes like \d, \w, \s
  2. Add quantifiers for repetition patterns and select flags like g (global) and i (case-insensitive)
  3. The regex pattern updates in real time. Copy the final expression for use in your code

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