Reverse Text

In short Reversing text can mean three different things and this tool does all of them: character by character, so "hello world" becomes "dlrow olleh"; word by word, keeping each word readable but flipping their order; or line by line. Character reversal is the one with a technical trap. Reversing by code unit breaks any character outside the basic range — emoji, many CJK characters and accented letters built from combining marks all come apart, producing replacement characters or marks attached to the wrong letter. This tool reverses by grapheme, which is the unit a reader thinks of as one character, so emoji and accented letters survive intact. That is the difference between a reverser that works and one that mangles anything non-English. The uses are puzzles, checking palindromes by eye, and testing how software handles right-to-left or unusual text. It is not a cipher: reversing is its own inverse and anyone can undo it instantly, which is the same caveat that applies to ROT13.