Features
- Keeps the original order.
- Option to ignore upper/lower case and spaces at the ends.
- Removes empty lines and shows how many duplicates were found.
- Handles lists with 100,000+ lines.
Free and private
Everything runs in your browser. The text you type or paste is never uploaded, logged or stored.
Questions
Does it change the order of my list?
No. Only later copies are removed; the first copy stays where it was.
Can I sort the list too?
Yes - use the Sort lines tool on the result.
Is it free?
Yes - free and unlimited, with no sign-up and no watermark.