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omnikit

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Remove Duplicate Lines

Clean up a list by removing repeated lines, while keeping the first appearance of each item.

Processed on your device
  • Keeps original line order
  • Case and spacing controls
  • Removed-line count
Works in your browser · Your files stay hereFree · No account · No daily task limit
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How to use Remove Duplicate Lines

  1. Paste your list, one item per line.
  2. Choose whether case or spacing should matter.
  3. Copy the deduplicated result.

Privacy

This tool runs entirely in your browser. Your file is processed on your device and is not uploaded to a server. You do not have to take that on trust — the monitor directly beneath the tool reads your browser’s own record of every request this tab made while your file was open.

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