Remove duplicate lines
Paste a list with one item per line and every repeated line is removed instantly, keeping the first copy in its original position. You can ignore case and extra spaces.
- ๐ Runs on your device
- โค 0 bytes uploaded
- ๐ด Works offline
- โ Free, no sign-up, no watermark
How to use Remove Duplicate Lines
- Paste your list, one item per line, or open a text file.
- Choose whether to ignore case and trim spaces.
- Copy or download the unique lines.
Is it private?
Yes. Remove Duplicate Lines runs entirely in your web browser. What you type is never sent to Nolo or anyone else, and the page cannot send it anywhere: its security policy only allows it to talk to nolotools.com, which has no place to receive data. Nothing is stored either: close the page and it is gone. How Nolo works.
Questions and answers
Is my list uploaded?
No. The list is processed in your browser and never leaves your device, so it is safe for email lists and customer data.
Does it keep the original order?
Yes. The first time a line appears it stays where it was; later copies are removed. Turn on "Keep the last copy" to keep the last one instead.
What does "Ignore case" do?
It treats "Apple", "apple" and "APPLE" as the same line. The first spelling found is the one kept.
How many lines can it handle?
Hundreds of thousands of lines are processed almost instantly on a normal computer.