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Remove Duplicate Lines

Clean up lists in your browser: remove duplicate lines (case-sensitive or not), trim spaces, drop empty lines and sort A→Z, Z→A, by length or naturally — with counts of what was removed.

How to use

Remove Duplicate Lines in three steps

  1. 01

    Paste your list, one item per line.

  2. 02

    Choose how duplicates are matched and whether to sort.

  3. 03

    Copy or download the cleaned list.

FAQ

Good to know

Yes. By default the first occurrence of each line stays where it was; sorting is optional.

It orders numbers by value, so “item 2” comes before “item 10”.

No. The tool runs inside this browser tab. Your input is processed in memory on your device and is gone when you close the tab.

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