Remove Duplicate Lines Tool
Paste your list or multi-line text and remove all duplicate lines instantly. Enable case-insensitive mode to treat different capitalizations as duplicates.
Processed locally in your browser — nothing is uploaded.
How to Use
- Paste your multi-line text into the input area.
- Optionally enable case-insensitive or trim options.
- View deduplicated lines and statistics in the output panel.
FAQ
Does the order of lines change?
No. The tool preserves the original order, keeping the first occurrence of each line and removing subsequent duplicates.
What does the trim option do?
The trim option strips leading and trailing spaces from each line before comparison, so lines with extra spaces are treated as duplicates.