Remove Duplicate Lines
Paste a list and instantly remove duplicate lines, with options to ignore case, trim whitespace, drop empty lines and sort A→Z. See how many duplicates were removed. Free, private, in-browser dedupe tool.
Unique lines
How to use the Remove Duplicate Lines
- 1
Paste your list, one item per line.
- 2
Choose case, trim and empty-line options.
- 3
Optionally sort the result.
- 4
Copy your clean, unique list.
Frequently asked questions
Does it keep the original order?
Yes by default — the first occurrence of each line is kept in order. Turn on 'Sort A→Z' to reorder alphabetically.
Can it ignore case and spacing?
Yes — 'Ignore case' treats Apple and apple as the same, and 'Trim whitespace' ignores leading/trailing spaces.
Is my list uploaded?
No — deduplication runs entirely in your browser.
Tips & discussion
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