Paste your text and instantly remove all duplicate lines. Sort and trim options included.
Duplicate lines are a common problem when working with email lists, keyword research, data exports, or any text-based datasets. This tool removes exact duplicate entries while preserving your original order (unless you choose to sort). The trim option catches duplicates that only differ by leading or trailing spaces, giving you a cleaner final list.
Yes. All processing happens entirely in your browser. Your text is never sent to or stored on any server. You can even disconnect from the internet after the page loads and the tool will still work.
Yes. The tool handles tens of thousands of lines efficiently. For very large files (100K+ lines), processing may take a few seconds but it will complete without issues.
Yes, by default the comparison is case-sensitive. This means 'Hello' and 'hello' are treated as different lines. If you need case-insensitive deduplication, convert your text to lowercase first using our Case Converter tool.
When enabled, leading and trailing spaces are removed from each line before comparison. This catches duplicates like 'apple' and ' apple ' that differ only in whitespace. The output preserves the trimmed version.
Yes. Choose from three sort options: No sorting (keeps original order), A-Z (alphabetical ascending), or Z-A (alphabetical descending). Sorting is applied after duplicate removal.