はてなブログ 未読数 is a free Chrome add-on developed by Cside. It is categorized under Browsers and falls under the subcategory of Add-ons & Tools. This unofficial extension displays the number of unread articles in your subscription list on Hatena Blog.

With はてなブログ 未読数, you can easily keep track of the number of unread articles in your subscription list. The extension icon will show the number of unread articles, making it convenient for you to stay updated with the latest content. By clicking on the extension icon, you will be directed to the subscription list page, where you can read the unread articles.

This add-on is a useful tool for Hatena Blog users who want to stay informed about their unread articles. It provides a simple and efficient way to manage your subscriptions and ensure that you don't miss any important content.