Instantly remove duplicate lines from your text while preserving the original order. Perfect for cleaning lists, removing repeated entries from data files, or organizing text content by eliminating redundant lines with advanced filtering options.
Our free online duplicate line removal tool helps you clean your text by identifying and removing duplicate lines while preserving the original order of unique content. This tool is perfect for cleaning lists, removing repeated entries from data files, processing CSV data, or organizing any text content that contains redundant lines.
The tool offers multiple comparison modes including exact matching, case-insensitive matching, and trimmed matching to handle different types of duplicates. All processing happens instantly in your browser, ensuring your text remains private and secure while providing fast, accurate duplicate removal results.
Enter or paste your text with duplicate lines into the input box. The tool will automatically analyze your content.
Select comparison mode (exact, case-insensitive, or trimmed), choose which occurrence to keep, and configure additional options.
The tool processes your text instantly. Copy the cleaned result or continue adjusting settings as needed.
Exact Match compares lines as-is. Case Insensitive ignores capitalization, while Trimmed Match ignores leading/trailing spaces before comparing lines.
Yes, enable the "Sort Output Lines" option to sort cleaned lines alphabetically after removing duplicates.
Yes, the tool works entirely in your browser, so it doesn’t need an internet connection once loaded.
No, all text processing happens locally in your browser. We don’t store or upload your data anywhere.