Free online Remove Duplicate Lines perform its specific task efficiently.

The free online Remove Duplicate Lines will streamline your workflow and save you effort.

How to Use This Tool

How to Remove Duplicate Lines

  1. 1

    Paste the text containing potential duplicate lines into the "Input Text" box.

  2. 2

    Each line of text will be treated as a separate item for comparison.

  3. 3

    Choose your options: Check "Case Sensitive Comparison" if "Line" and "line" should be treated as different. Check "Remove Empty Lines First" to discard blank lines before checking duplicates.

  4. 4

    Click the "Remove Duplicates" button.

  5. 5

    The text with all duplicate lines removed will appear in the "Unique Lines" box.

  6. 6

    The number of removed lines will be displayed.

  7. 7

    Use the "Copy Result" button to copy the cleaned text.

Example Use Cases

  1. 1

    Cleaning up email lists or contact lists.

  2. 2

    Removing duplicate entries from data logs or reports.

  3. 3

    Simplifying lists of keywords or tags.

  4. 4

    Finding unique lines in code snippets or configuration files.

Cookie Settings

We use cookies to enhance your experience and analyze site traffic. By clicking "Accept All", you consent to our use of cookies.

Privacy Preferences

We and our partners share information on your use of this website to help improve your experience. For more information, or to opt out click the Do Not Sell My Information button below.