Free Online Text Tools
Instantly analyze and transform your text.
From word counts to case conversions, our free, private tools help writers, students, and professionals work smarter—no registration needed.
Why Use a Duplicate Line Remover?
Duplicate lines can cause issues in code, CSV files, email lists, and more. This tool quickly finds and deletes all duplicate lines, helping you clean up lists for Excel, Google Sheets, or text processing. It also offers sorting and empty line removal for maximum control.
Everything is processed instantly and locally—your data is never uploaded or saved.
Frequently Asked Questions
Paste your text or list in the box, and duplicate lines will be removed instantly. You can also choose to sort the lines or trim empty lines.
Yes. All processing happens in your browser. Your text is never uploaded, stored, or seen by anyone else.
Absolutely! This tool is great for cleaning up code snippets, CSVs, email address lists, and any plain text data.
You can process thousands of lines—limited only by your browser's capabilities.