YoukuCast is a free Chrome add-on developed by vinsonlu. It aims to enhance the Youku experience by adding ChromeCast support to the platform. With YoukuCast, users can easily stream their favorite Youku videos directly to their ChromeCast devices.

The add-on is easy to install and use. Once installed, users can simply click on the ChromeCast icon in the Youku video player to cast the video to their ChromeCast device. This allows for a seamless and convenient viewing experience, especially for those who prefer to watch videos on a larger screen.

It's worth noting that the developer has not released any recent updates for YoukuCast, so users should be aware that there may be compatibility issues with newer versions of Chrome or the Youku platform.