What this tool does
This tool deduplicates one-item-per-line text while preserving the order of the items you keep. It is useful when a spreadsheet is overkill for a quick cleanup.
Common uses
- Email or contact lists exported as one value per line
- Keyword, URL, SKU or ID lists
- Names copied from forms, rosters or registrations
How it works
Blank lines are ignored. You decide whether upper- and lowercase values count as different and whether the first or last occurrence is kept.