Remove Duplicate Lines

Key Features

• Remove Duplicates: Automatically strips out any line that repeats itself.
• Case Sensitivity: Choose whether uppercase and lowercase variations count as unique.
• Remove Empty Lines: Automatically cleans up blank spaces to keep your list tight.
• Live Junk Counter: See exactly how many duplicate lines were wiped out.
• Local File Support: Load and save massive .txt and .csv lists securely.
• Client-Side Privacy: All list processing happens entirely inside your browser.

Perfect for Data Cleanup

If you manage email lists, SEO keyword lists, or Excel spreadsheet data, duplicates are a massive headache. Paste your entire column here, and this tool will instantly filter it down to only unique, single values.

What is "Case Sensitive"?

If Case Sensitive is OFF, the tool treats "Apple" and "apple" as duplicates and removes one. If it is ON, it treats them as two completely different words and keeps both!

Is this tool free?

Yes, this list cleaner is 100% Free. There are no limits on the number of lines, rows, or lists you can process. No sign-up required and no hidden fees.

Why Upload/Download?

If you need to process a massive 50,000-line keyword list, copying and pasting might freeze your computer clipboard. The Load List and Save .txt buttons handle massive files instantly.

Privacy & Security

Your privacy is our priority. Since this tool runs Client-Side (using JavaScript in your browser), your private email lists or data dumps are never uploaded to our servers.