osu! koko is a free Chrome extension developed by jecsham that allows users to automatically download beatmaps for the popular rhythm game osu!. With osu! koko, users no longer have to manually search and download beatmaps, as the extension takes care of it for them.

One of the main features of osu! koko is its ability to download beatmaps automatically, saving players time and effort. Users can also configure the extension to exclude beatmaps with videos, providing more control over the download process. Additionally, osu! koko is compatible with both the old and new osu! website, ensuring that users can enjoy the extension regardless of the site they prefer.

It's important to note that osu! koko is not an official osu! extension. However, it offers a convenient way for players to enhance their osu! experience by simplifying the beatmap downloading process. For those who want to support the developer, there is an option to donate through PayPal.

Please note: The best way to download beatmaps is still through the osu! supporter tag, but osu! koko provides a convenient alternative for users who prefer using a Chrome extension.