This tool offers a tool called "Remove Duplicate Lines Tool." It presents a straightforward interface where you can input text containing multiple lines, some of which may be duplicates. The tool then identifies and removes these duplicate lines, returning the modified text without duplicates. The interface consists of a text area for input, a button to initiate the removal of duplicate lines, and an output area displaying the modified text. Additionally, there's a "Copy" button to facilitate copying the modified text to your clipboard for further use. The implementation utilizes HTML for structure, CSS for styling, and JavaScript for functionality.