SideHN is a free Chrome extension developed by alin.panaitiu. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. SideHN is designed to enhance the browsing experience on Hacker News by providing a convenient sidebar that displays HN comments for the opened link.

With SideHN, users can enjoy the benefits of having HN comments readily available while reading articles on Hacker News. The extension achieves this by adding a parameter to the links on a Hacker News page. When a user clicks on a link, the article page will show a sidebar containing the relevant HN comments for that particular link.

One notable feature of SideHN is its ability to be disabled for individual domains. Users can simply click on the extension's icon to disable it for specific websites, providing them with full control over their browsing experience.

Overall, SideHN is a useful Chrome extension for Hacker News enthusiasts who want to easily access HN comments while browsing articles. Its straightforward functionality and customizable options make it a valuable addition to any Hacker News user's toolkit.