How to use Remove Duplicate Lines
Paste your list with one item per line, choose whether matching should ignore upper and lower case, and copy the cleaned list.
What it keeps
The first time a line appears, it stays. Every later copy is removed, and the original order of the list is kept. That makes it safe for lists where order matters, like a ranked keyword list or a sequence of log entries, rather than sorting everything alphabetically.
Typical clean up jobs
Merging two email lists, combining keyword exports, or tidying product codes copied from several spreadsheets often leaves repeats. Removing them before you import avoids double emails and skewed counts. If capital letters vary, such as Apple and apple, switch on case insensitive matching.
Examples
- apple, banana, apple, orange
apple banana orange
- Case-insensitive: Apple and apple
Apple Banana
Limitations and assumptions
Compares whole lines. Lines that differ only by extra spaces count as different, so tidy spacing first if needed.
Frequently asked questions
Does it keep the original order?
Yes, the first occurrence of each line stays where it was.
Is it case sensitive?
You choose: case-sensitive or case-insensitive.
How do I sort the list?
Sort it in a spreadsheet or editor afterwards.
Is my text uploaded?
No, it stays in your browser.