TEXT TOOL · FREE & PRIVATE
Remove Duplicate Lines
Remove repeated lines from text while preserving the original order.
✓ Free to use✓ No sign-up✓ Runs in your browser
Remove Duplicate Lines
Remove repeated lines from text while preserving the original order.
QUICK GUIDE
How to use Remove Duplicate Lines
Paste one item per line, choose whether to ignore letter case or empty lines, then remove duplicates and copy or download the result.
Privacy first
Processing happens in your browser. No account or server upload is required.
GOOD TO KNOW
Frequently Asked Questions
Does the tool keep only one copy of each line?
Yes. It removes repeated lines according to the selected matching options.
Can it ignore uppercase and lowercase differences?
Yes. With case-insensitive matching, entries such as Apple and apple can be treated as duplicates.
What happens to empty lines?
You can choose how empty lines are handled using the tool's available options.
When is line deduplication useful?
Use it to clean mailing lists, tags, identifiers or other line-separated data.