Regex Editor & Tester

Matches three consecutive words separated by the exact same single whitespace character, using a backreference (\2) to ensure both separators are identical (e.g., space-space or tab-tab). The four capture groups allow each part to be referenced in replacement strings, such as '$1 $3 $4', to normalize spacing or restructure text. Commonly used in global search-and-replace operations to fix mixed separators or reformat word sequences.