Duplicate Line Remover

Remove duplicate lines from a list of text. Optionally keep the original order or trim whitespace.

Features

Before/after line count
Preserve order
Case sensitive/insensitive
Show removed lines

How to Use

1. Paste your text into the input box (one item per line).

2. Toggle case-sensitivity and trim options as needed.

3. Click Remove Duplicates — the deduplicated result appears on the right.

Frequently Asked Questions

Does it preserve the original order?
Yes, the first occurrence of each line is kept in its original position.

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