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Remove Duplicate Lines

▸About this tool

Remove duplicate lines from text instantly. Keeps unique lines in their original order. Options for case-sensitivity, trimming, and sorting.

▸Privacy and details

Your files never leave your device.

Fast browser processing with no account required.

Optimized for desktop and mobile with accessible controls.

▸How to use
  1. Paste your text into the input area.
  2. Choose options: case-sensitive matching, trim whitespace, sort output.
  3. The deduplicated output appears instantly below.
  4. Click Copy to copy the result, or clear the input to start fresh.
▸Why use this tool

Lists of keywords, email addresses, domains, or code lines frequently contain duplicates. This tool removes them in one click, preserving original order or sorting the results, running entirely in your browser with no data sent anywhere.