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Remove Duplicate Lines

This online tool will remove/delete all duplicate lines within your text/list.  NOTE: Javascript must be enabled.

Find Mode  Remove Empty Lines  Display Removed    lines of text.

Enter your text here, select options and click a duplicate removal function button from above. NOTE: Duplicate text removal is only between content on new lines and duplicate text within the same line will not be removed. For Case Sensitive duplicate removal use the "CS" button located to the right of the "Remove Duplicate Lines" button. Checking the "Find Mode" checkbox will find duplicate lines without removing them. (e.g. DUPLICATE=>some text line<=DUPLICATE) Checking the "Remove Empty Lines" checkbox will remove all blank/empty lines. Checking the "Display Removed" checkbox will open a new text box below for displaying all found/removed lines prefixed with their line number. Example: Click the "Remove Duplicate Lines" button and watch these duplicate lines become one. Click the "Remove Duplicate Lines" button and watch these duplicate lines become one. Click the "Remove Duplicate Lines" button and watch these duplicate lines become one. WARNING: Please keep your input text under 5000 lines or this program could become unresponsive. Lists over 1000 lines are slow to process. Privacy of Data: This tool is built-with and functions-in Client Side JavaScripting, so only your computer will see or process your data input/output.

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