Sort Text Lines
Sort lines alphabetically, by length or numerically — reverse, ignore case, drop blanks and duplicates.
Stays on your device. This tool runs in your browser — nothing you paste or open ever leaves it. Nothing uploaded, nothing to leak.
Alphabetical versus numeric
Plain alphabetical sorting treats everything as text, so "10" lands before "2". Numeric mode reads the actual value, so a list of numbers or versioned items sorts the way you expect. Choosing the right one is the difference between a tidy list and a confusing one.