How to Use
Paste a list and duplicate lines are removed while the original order of first appearances is preserved. The cleaned list is ready to copy back out in one click. It is the quickest way to deduplicate names, URLs, IDs, or log entries without opening a spreadsheet or writing a script. Everything runs in your browser.
- Removes duplicate lines
- Keeps the original order of first occurrences
- Instant processing
- One-click copy
- No upload — browser only
Use cases
- Deduplicating a mailing or attendee list
- Cleaning URL or ID lists
- Checking a log for unique entries
- Merging lists that partially overlap