Category: Text tools

Remove Duplicate Lines

Deduplicate a list and keep only the unique lines

Paste a list and keep only the first occurrence of each line, with options to ignore case, trim spaces and drop blank lines.

2 duplicate lines removed
apple
banana
cherry

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What this tool does

Lists exported from spreadsheets, logs and address books usually contain repeats. This tool keeps the first occurrence of every line and preserves the original order, then tells you how many lines were removed.

How to use it

  1. Paste your list, one item per line.
  2. Choose whether case, surrounding spaces and blank lines should matter.
  3. Copy the deduplicated list.

Privacy

This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.

Frequently asked questions

Is the original order kept?
Yes. The first time a line appears it is kept in place; later repeats are dropped.
Are near-duplicates removed?
Only exact matches are removed, after the trim and case options you selected have been applied.