Duplicate Line Remover

About Duplicate Line Remover

The Duplicate Line Remover is a powerful tool designed to clean up your text by removing duplicate lines. It offers several features to customize how duplicates are identified and removed, making it useful for a variety of text processing tasks.

Whether you're cleaning up data, organizing lists, or preparing text for further processing, this tool can help you quickly and efficiently remove unwanted duplicate lines.

How to Use

1. Enter or paste your text into the input field at the top of the page.
2. Use the switches to customize how duplicates are identified and removed:
   • Case sensitive: Toggle to treat uppercase and lowercase letters as distinct.
   • Trim whitespace: Remove leading and trailing whitespace when comparing lines.
   • Keep first occurrence: Retain the first instance of a duplicate line instead of removing all occurrences.
   • Add line numbers: Prefix each line with a number in the output.
3. If "Add line numbers" is enabled, you can set the starting line number.
4. Use the "Sort A-Z" or "Sort Z-A" buttons to sort the output alphabetically.
5. Click the "Copy Result" button to copy the processed text to your clipboard.
6. Use the "Clear" button to reset both input and output fields.

Tips and Tricks

• Use the "Case sensitive" option when you need to distinguish between uppercase and lowercase versions of the same word or phrase.
• The "Trim whitespace" option is useful for cleaning up data where extra spaces might have been introduced accidentally.
• "Keep first occurrence" is helpful when you want to maintain the original order of your list while removing subsequent duplicates.
• Adding line numbers can be useful for referencing specific lines in the processed text, especially in large datasets.
• The sorting feature can help you organize your data alphabetically after removing duplicates.
• You can use this tool to clean up lists of email addresses, remove duplicate log entries, or consolidate any type of line-based data.