Free Online Remove Duplicate Lines Tool
The Remove Duplicate Lines tool strips repeated lines from your list, keeping each entry only once. Optionally ignore case and keep the last occurrence instead of the first.
How to Use
Paste a list with one item per line and click Remove Duplicates. The tool reports how many duplicates were removed and shows the clean list.
- Case insensitive — "Apple" and "apple" count as duplicates
- Keep last occurrence — retains the final instance of each line
- Blank lines are preserved as-is