Remove Duplicate Lines

This tool helps you remove duplicate lines from your text while preserving the original order. It provides several useful features:

• Keep first occurrence of duplicate lines
• Case sensitive/insensitive matching
• Trim whitespace before comparison
• Show duplicate line count
• Show removed lines

How to use

1. Paste your text in the editor
2. Configure the options as needed:
   • Case sensitive: Match exact case
   • Trim whitespace: Ignore leading/trailing spaces
3. The result will update automatically
4. Click "Copy" to copy the result

Tips

• Use "Show removed lines" to see which lines were removed
• The original order of unique lines is always preserved
• Empty lines can be treated as duplicates if needed