Toolzie

Remove Duplicate Lines

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How to Use the Remove Duplicates Tool

Paste text list. Click Remove Duplicates. Unique lines returned. Preserve order or sort. Copy.

Clean duplicate-filled lists without formulas or scripts.

Frequently Asked Questions

Case?

Case-sensitive by default; toggle available.

Preserve?

Yes, keep original order.

Blanks?

Yes, optional removal.

Size?

Thousands handled easily.

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About This Tool

Remove duplicate lines from any list of text with the Toolzie Remove Duplicates tool. Paste your list, choose case sensitivity, and optionally sort — get a clean deduplicated list in one click.

How to Use

  1. Paste your list of items, one per line, into the input.
  2. Toggle case-sensitive mode if needed.
  3. Optionally sort the result alphabetically.
  4. Click Remove Duplicates and copy the cleaned list.

Frequently Asked Questions

Does it remove exact duplicates only?

By default yes — only exact character-for-character duplicates are removed. Enable case-insensitive mode to treat 'Apple' and 'apple' as the same.

Can I sort the results after deduplication?

Yes — enable the sort option to output the unique items in alphabetical order.

Can I use this for email lists?

Yes — paste a column of email addresses to remove duplicates before importing to a mailing list.

Is there a limit to how many lines I can process?

No set limit — the tool handles large lists well.