HN Titles is a free Chrome add-on developed by Medusis. It falls under the category of Browsers and is specifically listed as an Add-ons & Tools subcategory. The purpose of this add-on is to display the original titles of Hacker News (HN) stories before they were moderated or changed.

With HN Titles, users can avoid clicking on the same story multiple times due to title changes. This can be particularly useful when accessing Hacker News from different devices or platforms where the link's visited status may not be synced. By showing the original titles, users can quickly identify if they have already read a particular story.

While moderation on Hacker News generally improves the quality of titles by reducing clickbait and adding useful information, there are instances where valuable information is lost. HN Titles allows users to read the titles as the original posters intended, preserving the full context of the story.