Remove Duplicate Lines Tool

Paste your list, keywords, emails, names or text lines below. Duplicate lines will be removed instantly based on your selected options.

🔒 Processed in your browser
Live duplicate removal enabled

Cleaning Options

Result copied successfully.
0 duplicate lines removed
0 Original Lines
0 Unique Lines
0 Duplicates
0 Empty Lines
Useful for cleaning email lists, keywords and product names.
Turn on case sensitive if capital letters should matter.
Your list is processed locally in your browser.

About This Tool

Remove Duplicate Lines is a free online text cleaning tool that helps you remove repeated lines from any list or text.

You can use it to clean email lists, keyword lists, product names, usernames, CSV-style lines, copied spreadsheet data and other line-based text. The tool can trim spaces, remove blank lines and compare lines with or without case sensitivity.

It runs directly in your browser, so your text does not need to be uploaded to a server.

How to Use Remove Duplicate Lines

1. Paste your text or list into the input box.
2. Choose whether to trim spaces, remove empty lines and use case sensitive matching.
3. The tool will automatically remove duplicate lines.
4. Copy the clean result or move the result back to the input box.
5. Use the clear button to start again.

Privacy Note: This Remove Duplicate Lines tool works directly in your browser using JavaScript. Your text does not need to be uploaded to our server.

Frequently Asked Questions

Is this Remove Duplicate Lines tool free?

Yes. This tool is free to use and does not require signup.

Can it remove empty lines?

Yes. You can enable the remove empty lines option to skip blank lines in the final result.

Does this tool support case sensitive matching?

Yes. If case sensitive is enabled, Apple and apple will be treated as different lines.

Does my list get uploaded to the server?

No. This tool processes your text directly in your browser using JavaScript.