Remove Duplicate Lines
Remove duplicate lines from a list or text, keeping order if you want. Free and private, right in your browser.
Remove duplicate lines from text
Paste a list and remove repeated lines instantly, with options to ignore case, trim spaces, drop empty lines and sort alphabetically. Great for cleaning email lists, keywords and CSV columns — all processed privately in your browser.
How to remove duplicate lines from text
- Paste your list or text into the box above.
- Choose whether to keep the original order and ignore case.
- Duplicates are removed instantly in your browser.
- Copy the cleaned list. Your data is never uploaded.
Frequently asked questions
Can I remove duplicates but keep the order?
Yes. Enable keep-order to remove repeats while preserving the first occurrence of each line.
Is my list uploaded anywhere?
No. Deduplication runs in your browser, so your data stays private.
Can it ignore case when finding duplicates?
Yes. Turn on case-insensitive matching to treat Apple and apple as the same.
Is there a size limit?
No. You can paste large lists and clean them instantly.