Free Duplicate Line Remover
Remove repeated lines from any list, with options to ignore case, trim spaces and sort. Private and instant.
About this tool
Paste a list of emails, keywords, URLs or any lines of text and remove repeats in one click. The first occurrence of each line is kept in its original order unless you choose to sort.
How to use Remove Duplicate Lines in 3 Simple Steps
1
Paste your list
Paste the lines you want to clean up.
2
Choose options
Ignore case, trim spaces, remove empty lines or sort if needed.
3
Copy the unique lines
Click the button and copy the cleaned list.
Why ForgePDF Remove Duplicate Lines is Completely Private
🔒 Lines are compared with JavaScript in your browser. Your lists, including emails or customer data, are never uploaded.
Frequently Asked Questions
Which duplicate is kept?
The first occurrence stays, and later copies are removed, unless you sort the list.
Does it handle large lists?
Yes. It uses a set lookup, so lists with tens of thousands of lines are processed quickly on most devices.