Remove Duplicate Lines
Deduplicate lines while preserving order.
Processed locally in your browser — your files never leave your device.
How to use
- 1Paste your list, one item per line.
- 2Toggle case-insensitive matching if needed.
- 3Click Remove and copy the cleaned list.
Remove repeated lines from lists, keeping the first occurrence and the original order. Optional case-insensitive matching and blank-line handling, with a removed-count report.
Frequently asked questions
Is the original order kept?
Yes. Only the first occurrence of each line is kept, in its original position.
Is my text uploaded?
No. Processing happens entirely in your browser.