Remove Duplicate Lines
Remove duplicate lines, optionally ignore case
Duplicates removed: 0
What is Remove Duplicate Lines?
Remove duplicate lines keeping the first occurrence. Optional case-insensitive matching.
How to Use
- Paste one item per line.
- Enable ignore case if needed.
- Copy the deduplicated output.
Frequently Asked Questions
Which line is kept?
The first occurrence of each unique line.
Related Tools
See Remove Empty Lines and Sort Lines.