Dark Kakuge-Checker is a Chrome add-on developed by H.Obayashi that brings a dark theme to Kakuge-Checker.com. This free tool allows users to switch the visual appearance of the website to a dark mode, enhancing the browsing experience for those who prefer darker interfaces.

The latest version 1.3, released on June 29, 2020, focuses on making the background compatible with dark mode after the distribution information is expanded. Version 1.2, launched on June 1, 2020, addressed areas where dark mode was not fully implemented. Additionally, version 1.1, released on May 23, 2020, fixed parts of the website that were not properly dark mode-enabled and adjusted the metadata of the extension package.