Duplicate Lines Remover Online Tool

This tool will help you to remove duplicate lines online in your browser. Also, it can delete lines if they appear several times, thus finding all absolutely unique lines.

Everything is happening automatically. All you need to do is write, paste, or import your text from a file, and the result will be shown right away. No need to press any buttons.

• Trim Lines: if enabled, remove all spaces and tabulations around each line before deduplication. Default value: enabled
• Remove If Has Duplicates: when enabled, removes lines that appear more than once. As a result, only lines that did not have duplicates will remain. Default value: disabled.
• Ignore Case: enables considering two lines equivalent despite the difference in small and big letters. The spelling variant that is most often found in the text is shown in the output. Default value: disabled.
• Preserve Empty Lines: controls whether empty lines should stay in the output as separators. Default value: disabled.
• Sort Result: whether the result should be sorted alphabetically. If Preserve Empty Lines is enabled, then this option is off and can't be changed because sorting will move all empty lines to the top. Default value: disabled.

If you have a list of items of any type and need to get rid of repetitions or find unique elements, the dedupe list online tool is what you need. Use it if:

• You are a SEO specialist, have a bunch of keywords from different sources, and need to deduplicate that list.
• E-mail addresses need to be cleared to not write one person several times.
• There is a need to find differences in two lists (paste them at the same time and enable Remove If Has Duplicates).