Duplicate Line Remover

Documentation

Features

• Removes all duplicate lines while preserving the original order
• Keeps the first occurrence of each line
• Case-sensitive comparison
• Shows number of duplicate lines removed
• Copy result to clipboard with one click
• Clear both input and output fields instantly
• Responsive design - works on all devices

How to Use

• Paste or type your text in the input field on the left
• Click "Remove Duplicates" to process your text
• The cleaned text will appear in the output field on the right
• Use the "Copy Result" button to copy the cleaned text to your clipboard
• Click "Clear All" to reset both input and output fields

What Counts as a Duplicate?

• Lines that match exactly, including whitespace
• Empty lines are treated as duplicates if multiple exist
• Leading and trailing whitespace is considered in the comparison
• Case-sensitive matching (e.g., "Hello" and "hello" are different)