Remove Duplicate Lines
Paste a list and strip out duplicate lines while keeping the original order. Tweak the options to match your data.
0 lines · 0 removed
Frequently asked questions
Are the original lines kept in order?
Yes. The first occurrence of each line is kept and later duplicates are removed, so the output preserves the original top-to-bottom order of your list.
What does the case-sensitive option do?
When on, “Apple” and “apple” are treated as different lines. Turn it off to treat them as the same and remove the duplicate regardless of capitalization. “Trim spaces” also strips leading/trailing whitespace before comparing so “item ” and “item” match.
Is my text uploaded anywhere?
No. All processing happens in your browser on this device. Your text never leaves the page, so it is safe for private or sensitive lists.