Hacker News Duplicate Detector is a Chrome extension developed by dstein64. As a free add-on tool in the Browsers category, it aims to improve the browsing experience on Hacker News discussions. This extension detects duplicate submissions by generating links to existing Hacker News posts that point to the same URL.

With Hacker News Duplicate Detector, users can easily identify if a particular URL has already been shared on Hacker News before. This feature helps prevent the cluttering of the platform with duplicate posts, allowing users to focus on unique and fresh content. By providing links to existing posts, users can quickly access the discussions and insights shared by the Hacker News community.

This Chrome extension by dstein64 offers a valuable solution for Hacker News users who want to stay updated and avoid redundancy in the submissions. Its simple and efficient functionality enhances the overall browsing experience on Hacker News.