Remove Duplicate Lines
Instantly clean your lists by removing duplicates and empty lines. Sort alphabetically and organize data for free.
Quick Start Guide
Paste Your List
Enter your text data into the main box. Ensure each item is on a new line (e.g., email lists, keywords).
Clean or Sort
Click "Remove Duplicates" to delete repeated lines, or "Sort A-Z" to organize your list alphabetically.
Copy Clean Data
Once processed, use the Copy button to grab your clean, unique list ready for use.
Features of List Cleaner
Smart Cleaning
Not just duplicates, our tool also removes empty blank lines and trims extra whitespace from your data.
Large Lists Supported
Process thousands of lines in seconds. Optimized for big email lists, SQL data, or keyword research.
100% Private
Data processing happens in your browser using JavaScript. Your lists are never uploaded to our servers.
Frequently Asked Questions
Is this case-sensitive?
Yes, "Apple" and "apple" are treated as different lines. If you need them to be the same, convert your text to lowercase first using our Case Converter.
Can I sort my list without removing duplicates?
Currently, the Sort function also removes duplicates to ensure the cleanest possible list.
Is there a limit on lines?
There is no hard limit, but browser performance depends on your device. We have tested lists up to 50,000 lines smoothly.