Notion Sidebar Controller is a Chrome extension developed by ryo-fujinone that offers convenient control over Notion's sidebar display state. This tool identifies the display a window is on by calculating the overlapping area for each display and selecting the target display with the largest overlap area. Users can manage the sidebar's state when Notion is opened, choosing between the most recent, open, or closed state. Additionally, it allows users to control whether the sidebar is displayed when hovering over it. Notion Sidebar Controller simplifies the management of Notion's sidebar, providing users with customization options for a better user experience.

The extension features an icon designed by icons8.com, enhancing its visual appeal and accessibility for users seeking to streamline their Notion workspace.