EN

Remove duplicate lines

Remove repeated lines from email lists, product codes, keywords or any other list, while the first occurrence of each line stays in place.

Free and private. Everything runs in your browser, nothing is uploaded.

How it works

  1. Paste your listOne item per line. Paste from Excel, a document or open a text file.
  2. Check the optionsThe action is already selected. Adjust case sensitivity and spaces if needed.
  3. Copy the resultCopy the cleaned list or download it as a text file.

Clean lists for imports and campaigns

Duplicate entries cause double emails, double products and wrong totals. Paste the list, and the result shows how many duplicates were removed.

Spaces at the start and end of lines are ignored by default, so a value with a trailing space still counts as a duplicate.

Examples

Merge two email lists and remove the addresses that appear in both, clean a barcode list before a bulk upload, or count unique visitors from a list of IDs by comparing the line counts before and after.

About TXT

Plain text with one item per line. A column copied from Excel pastes as one value per line, and Windows and Mac line breaks are handled the same.

Frequently asked questions

Are Apple and apple duplicates?

By default yes. Turn on case sensitive to keep them as different lines.

Are my lists uploaded?

No. Everything happens in your browser and nothing is sent to our servers.

Does removing duplicates keep the original order?

Yes. The first occurrence of each line is kept in its place and later copies are removed.

How is shuffle done?

With the browser's secure random generator, so every order is equally likely. It is good for draws and random picks.

Does it work offline?

Yes. After you open the page once, it keeps working without an internet connection.