Duplicate line removal

Remove duplicate lines from the text, preserving order and original indentation

How does duplicate line removal work?

This tool analyzes the entered text line by line and removes all duplicate lines, leaving only unique entries in their original order.

Source text example
apple
orange
banana
apple
grape
orange
banana
After processing
apple
orange
banana
grape

Advantages of our tool:

  • Preserves line order (first occurrence stays in place)
  • Does not change character case and spaces
  • Handles any type of text (codes, lists, data)
  • Instant result without page reload
  • Shows statistics on removed duplicates