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Remove duplicate lines

Leave one instance of repeating lines.

Help and information

How to use

Remove duplicates from the list, keeping the first variation of each line.

  1. Type or paste your text.
  2. Adjust the result if needed.
  3. Click “Remove duplicate lines” and download the finished file.
Read the full guide
Frequently asked questions
Where is the processing performed?
The tool runs on your device, right in your browser. Files and entered text for this operation are not sent to the server.
What to do if the result is not suitable?
Take the original file or text and try other settings in the steps above. Compare the new result with the previous one. The original files on your device remain unchanged.
Features and limits

Just because spaces are not included in the comparison does not mean they will be removed from the remaining string. There is a separate tool for removing spaces.

.txt, .md → .txt

50 MB / file; 100 MB in total; 20 files.

Processing in the browser. No files are sent to the server for this operation.

This leaves the first occurrence of each line in the original order. Check that the desired options were not combined by the selected rules.