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Remove Duplicate Lines

Paste a list with repeated entries and get a clean unique-only list in one click. Shows line counts before and after so you can verify the cleanup.

Before: 0 · After: 0

How to use

  1. Paste your list with one item per line.
  2. Click Process to remove exact duplicate lines.
  3. Check the before/after counts, then copy or download.

Frequently asked questions

How do I remove duplicates from a list online?

Paste the list here and click Process. Every exact-duplicate line is removed, keeping the first occurrence order.

Is matching case-sensitive?

Yes — "Apple" and "apple" count as different lines. Normalize case first with our Case Converter if needed.

What about near-duplicates with extra spaces?

Trim trailing spaces first (or use Trim options in sibling converters) so near-duplicates match exactly.