About this tool
Duplicate Line Remover scans your text line by line and keeps only unique entries, optionally ignoring case and trimming spaces. It is perfect for cleaning email lists, keyword lists, CSV columns and any data where repeated rows are a problem. You can also sort the result alphabetically.
How to use
- 1Paste your list, one item per line.
- 2Choose options like ignore case or sort.
- 3Copy the de-duplicated result.
Benefits
- Removes duplicates instantly.
- Optional case-insensitive matching and sorting.
- Shows how many duplicates were removed.
Frequently asked questions
Does it keep the original order?+
Yes, unless you enable sorting. The first occurrence of each line is kept.
Is it case-sensitive?+
By default yes, but you can enable 'ignore case' to treat Abc and abc as the same.