How find and replace text works
Find and replace searches a body of text for a target and substitutes it with something else. In literal mode the target is matched character for character; in regex mode it is a regular expression that can match patterns like digits, words, or repeated groups, which is far more powerful for bulk edits.
This tool supports both modes plus the usual options: case sensitive (default on) controls whether "Hello" and "hello" match, and replace all (default on) controls whether every match is replaced or only the first. In literal mode any regex metacharacters in your find string are escaped automatically, so a literal "." matches a period rather than any character.
Paste your text, enter the find and replace strings, choose your options, and click Replace. The tool reports the number of replacements made so you can confirm the edit did what you expected. Use it for cleaning up data, renaming identifiers across a file, or redacting repeated terms.