Hacker News Shortcut, developed by Zinan Xing, is a Chrome extension that allows users to navigate Hacker News using only their keyboard. This free extension enhances the browsing experience by providing convenient keyboard shortcuts for various actions.

One of the standout features of Hacker News Shortcut is its Arrow Navigation. By pressing the "Tab" key, users can activate arrow navigation mode, which allows them to navigate through story links using the up and right arrow keys. Users can then perform actions such as opening the link in a new tab, voting it up, viewing the author, and accessing the comments section.

In addition to Arrow Navigation, Hacker News Shortcut also offers Page Switching. Users can easily switch between different pages on Hacker News with a single key press. For example, pressing the right arrow key takes users to the next page, "n" takes them to the "newest" page, and "m" takes them to the "comments" page. However, arrow navigation is currently not available on the "comments" and "jobs" pages.

Hacker News Shortcut is a valuable tool for Hacker News enthusiasts who prefer keyboard navigation. With its intuitive shortcuts and convenient features, users can streamline their browsing experience and enjoy Hacker News more efficiently.