A text replacer handles repeated edits without making you scan every line by hand. Use Plain text for names, phrases, product codes and spelling fixes. Match case when uppercase and lowercase must stay distinct, or turn on Whole words to replace cat without changing catalog. Choose First match for a single correction or All matches for a document-wide change.
Regular expression mode is available for structured patterns such as dates, repeated spaces or reference numbers. Enter the pattern without slash delimiters. Replacement tokens such as $1 work in regex mode, while plain-text replacement is always inserted literally. The preview and match totals update locally as you type.