Remove Duplicate Lines
Remove duplicate lines from a list and keep the original order. Case-insensitive and trim options included — processed in your browser.
Remove Duplicate Lines
Delete repeated lines, keeping the first occurrence and the original order.
0 words · 0 characters · 0 lines
Press Remove duplicates to see the result.
How to use
The whole flow runs in your browser — nothing is uploaded.
- Paste the listOne entry per line works best.
- Set the optionsIgnore case or trailing spaces so near-identical lines also collapse.
- Remove duplicatesThe first occurrence of every line is kept, later copies are dropped.
- ExportCopy the clean list or download it as a .txt file.
- Every step runs locally in your browser.
Key Features
Delete repeated lines while keeping the first occurrence. Everything runs client-side on your own device.
- Order preservedThe first occurrence stays exactly where you wrote it.
- Case and whitespace optionsOptionally treat "Apple" and "apple" as the same entry.
- Duplicates removed counterSee exactly how many lines were removed.
- Local onlyYour list never leaves your browser.
Frequently asked questions
The first one, so the order of your list is preserved and only later copies are removed.
Yes — enable the case-insensitive option and Apple/apple/APPLE collapse into the first spelling.
It works line by line. If your data is separated by commas, split it into lines first for the cleanest result.