About Remove Duplicate Lines
Remove repeated lines, keeping only the first occurrence of each line.
How it works
Each repeated line is removed after its first occurrence. The remaining lines retain their original order.
How to use
- Paste one item per line.
- Read the resulting list.
- Check how many duplicate lines were removed.
Practical example
A list containing apple, pear and apple on separate lines becomes apple and pear.
Useful tips
Review spaces and capitalization in your list: different lines may represent different values.