You pasted a list and it is a mess
A column copied from a spreadsheet, a stack of log lines, a list of IDs — somewhere in there are blank lines, stray spaces, and duplicates you did not ask for. Cleaning it by hand is tedious and you will miss one.
Batch the cleanup
The Line Tools sort lines, remove duplicates, trim whitespace, drop blanks, reverse order, or shuffle them. Chain a few operations and your ragged block becomes a tidy list ready to paste somewhere useful.
Confirm what changed
Before you commit the cleaned result, drop the old and new text into the Text Diff Viewer to see exactly which lines were removed or reordered. That side-by-side check is the difference between "I think it is clean" and "I can prove it."
Everyday uses
- De-duplicating a list of emails or IDs before an import.
- Normalizing whitespace before a comparison or search.
- Shuffling a question bank or sample set.