Duplicate Line Remover
Duplicate line remover
0Input lines
0Unique lines
0Removed
About this duplicate line remover
Paste a list to keep the first occurrence of every line and remove later duplicates. Processing happens in your browser.
How to use it
- Paste or type one item per line.
- Choose whether matching should ignore letter case, surrounding spaces, or empty lines.
- Copy the unique-line result.
Common uses
Clean email lists, keywords, product codes, URLs, names, tags, inventory items, and exported spreadsheet data.
Frequently asked questions
Does this tool keep the first occurrence of each line?
Yes. Lines are kept in their original order, and later matching occurrences are removed.
Can duplicate matching ignore capitalization and surrounding spaces?
Yes. You can independently ignore letter case and spaces at the beginning or end of a line when identifying duplicates.
Is the entered list uploaded?
No. Duplicate detection and removal happen locally in your browser.