Hacker News Read Time is a free Chrome extension developed by Matteo Pellegrino. This add-on falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

This extension aims to improve your Hacker News (HN) reading experience by providing a preview of the read time for each article. It achieves this by crawling and evaluating the read time of each article, and displaying it through a non-invasive user interface. With this information, you can better manage your time by sorting or filtering articles based on their read time.

One notable feature of Hacker News Read Time is the ability to customize the read time calculation. You can adjust the number of words per minute used to compute the read time according to your preferences. This allows you to tailor the extension to your reading speed and optimize your browsing experience.