Free Duplicate Line Remover

Remove duplicate lines, sort A-Z

What is the Line Cleaner?

The Line Cleaner tidies up lists with three quick actions. It can remove duplicate lines, sort lines from A to Z or delete empty lines, all in one text box. It is ideal for cleaning email lists, keyword lists, names, URLs and any other data where each item sits on its own line.

How to use the Line Cleaner

  1. Paste your list into the box with one item on each line.
  2. Click Remove duplicates, Sort A-Z or Remove empty lines.
  3. Review the cleaned list in the result box.
  4. Click Copy and paste the clean list where you need it.

Benefits and use cases

Tips for best results

Clean your list in the order that suits you: remove empty lines first, then remove duplicates, and sort last. Remember that spaces at the end of a line make two lines different, so trim your text if matches are missing. For lists that mix upper and lower case, convert everything to one case with the Case Converter before removing duplicates.

ToolZen tools run in your browser, so your input is not uploaded to a server. Bookmark this page and come back whenever you need it. There is nothing to install and no account to create.

Frequently asked questions

Does it ignore capital letters when finding duplicates?

No. Lines must match exactly, so Apple and apple are treated as different lines.

Does it keep the original order?

Remove duplicates keeps the first appearance of each line in its original order.

How does the sort work?

Sort A-Z orders lines alphabetically using a simple text comparison.

Is there a limit on the number of lines?

No fixed limit, though very large lists depend on your device's performance.

About ToolZen

ToolZen is a collection of free, fast online tools that run in your browser. No sign-up, no uploads, no waiting.

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