Ny0bi Tool is a Chrome extension that allows you to enable dark mode on N予備校. With this extension, you can enjoy a dark theme on a wide range of pages, from mandatory classes to programming materials. It also supports pages like live broadcasts and forums.

One of the key advantages of Ny0bi Tool is that the dark mode conversion is done offline, ensuring your safety and privacy. Additionally, this extension is open-source, which means it has been developed transparently and can be inspected by anyone.

Please note that this tool is an unofficial creation by users and is not produced or approved by N予備校 or N/S High School. While the released version has been verified for safety by the developer, it is important to use it at your own risk.