Remove Duplicates

Remove duplicate lines or words with optional settings.

How It Works

The Remove Duplicate Lines tool splits your input text by new lines and removes any repeated lines or words based on your chosen settings. You can enable case sensitivity to treat lines like "Apple" and "apple" as different, and opt to remove blank lines for cleaner results. The word-by-word mode removes repeated words within each line. All processing happens instantly in your browser — no data is sent to any server, ensuring full privacy.

Example 1: Line Deduplication

Input: Apple Banana Apple Orange Banana Output: Apple Banana Orange

Example 2: Word-by-Word Deduplication

Input: hello hello world world test test Output: hello world test

Frequently Asked Questions

Is my text data stored or sent anywhere?

No. All processing happens locally in your browser, so your text never leaves your device.

Can I choose to ignore case when removing duplicates?

Yes! You can toggle case sensitivity to treat lines or words with different cases as identical or distinct.

What is word-by-word deduplication?

Instead of removing entire duplicate lines, this option removes repeated words within each line. For example, "hello hello world" becomes "hello world."

Can blank lines be removed automatically?

Yes. You can enable an option to remove blank or empty lines for a cleaner output.