Duplicate Line Remover
Remove duplicate lines from a list, with an option to ignore case.
apple banana Apple cherry
Everything runs in your browser — nothing you type here is sent anywhere.
Frequently asked questions
Does this change the order of my list?+
No — the first occurrence of each unique line is kept in its original position; only later duplicates are removed.
What does "ignore case" do?+
With it on, "Apple" and "apple" are treated as the same line, and only the first one is kept.
Is my text uploaded anywhere?+
No. All processing happens client-side in your browser; nothing you type is sent to a server.
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