Duplicate Line Remover Tool

Overview

The Duplicate Line Remover tool can quickly delete duplicate lines in text, supporting keeping first occurrence, last occurrence and more.

Features

• Remove All Duplicates: Delete all duplicate lines
• Keep First: Keep the first occurrence of each line
• Keep Last: Keep the last occurrence of each line
• Ignore Empty Lines: Automatically ignore empty lines
• Case Sensitive: Distinguish case differences in duplicate lines

How to Use

1. Paste or enter text in the input box (one item per line)
2. Select the deduplication mode
3. Click the "Remove Duplicates" button
4. View and copy the result

Examples

Input:

apple
banana
apple
cherry
banana

Deduplicated Output:

apple
banana
cherry