新着はてブチェッカー is a free Chrome add-on developed by kidokunjane. It falls under the Browsers category and specifically the Add-ons & Tools subcategory. This program allows users to check for new Hatena bookmarks in real-time.

With 新着はてブチェッカー, users can easily stay updated with the latest articles on Hatena bookmarks. The add-on displays the new bookmarked articles, and if there are any new articles available, the badge icon will show the number of new bookmarks.

This Chrome add-on is a convenient tool for avid Hatena users who want to keep track of the latest content being bookmarked. It provides a seamless way to access new articles without manually checking the website.