Remove Duplicate Lines
One of each, order kept
Paste a list and this tool keeps the first appearance of every line and drops the rest, then tells you how many duplicates it removed. By default it ignores case and surrounding spaces, so "Apple", "apple " and "apple" are treated as the same entry, which is usually what you want when cleaning a real list; untick those options for an exact match.
The original order is preserved rather than being sorted, so your list stays recognisable. To alphabetise it afterwards, use sort lines, and to see which words repeat most, try the word frequency counter.
Frequently asked questions
Is the remove duplicate lines free?
Yes. It is completely free with no sign-up and nothing to install. It runs entirely in your browser.
Is my text uploaded anywhere?
No. Everything is processed locally in your browser using JavaScript. Nothing you type or paste is sent to or stored on our servers.