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ZIYNU

Remove Duplicate Lines

Keep each line once, optionally sorted.

Remove repeated lines from email lists, keywords, product codes or any list. Choose whether matching is case sensitive, which copy to keep, and whether to sort the result.

How to use

  1. Paste your list, one item per line.
  2. Choose options such as case sensitivity and sorting.
  3. Copy the unique lines or download them as a TXT file.

Example

The list “Apple, apple, Banana, Apple” (one per line) becomes “Apple, Banana” when case sensitivity is off, and “Apple, apple, Banana” when it is on.

Good to know

  • “Keep last” is useful when later entries are more up to date.
  • “Ignore spaces at line ends” treats “apple ” and “apple” as the same.

Frequently asked questions

Is the order preserved?

Yes, unless you tick Sort A–Z. The first (or last) occurrence of each line stays in its position.

Can I dedupe a column from Excel?

Yes. Copy the column, paste it here, and paste the result back.

Is my list private?

Yes. It's processed only in your browser.