How to remove duplicate lines
- Paste your list, one item on each line.
- Choose whether to ignore case or spaces.
- Copy the cleaned list and check the number of lines removed.
About this tool
Paste a list of emails, names, URLs or keywords and every repeated line is removed. The first copy of each line stays, and the order of your list does not change. You can ignore upper and lower case, ignore extra spaces, keep your blank lines, or keep only the lines that appear once. The page tells you how many lines it removed.
Common questions
Does it keep my original order?
Yes. The first copy of each line stays where it was. You can also choose to keep the last copy instead.
How do I treat Apple and apple as the same?
Tick Ignore upper and lower case. The first spelling is the one that is kept.
Can I find only the lines that were never repeated?
Yes. Choose Only lines that appear once. Any line that occurs more than once is removed completely.
Is it free to use?
Yes. There's no sign-up, and you can use it as often as you like.
Is my text uploaded anywhere?
No. This tool runs inside your browser, so what you enter stays on your device.
Do I need to install anything?
No. It works in your browser on a computer or a phone.