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Runs locally in your browser

Remove Duplicate Lines

Remove repeated lines while preserving their first occurrence.

About this Remove Duplicate Lines tool

Remove Duplicate Lines processes your input locally in this browser. Nothing entered into this tool is sent to Duck Cloud servers.

How to use it

  1. 1Paste or type your input in the tool.
  2. 2Select the action button or use the displayed keyboard shortcut.
  3. 3Review the result, then copy it or clear the tool.

Example

Use the sample already provided in Remove Duplicate Lines, or replace it with your own input.

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