RealDownloader

RealDownloader integrates with the most common Internet browsers, so that anytime you position your mouse over a video, you’re asked if you want to download it. Then you can share your videos through popular social networking sites. It also comes with an add-on video player that lets you play various video formats. RealDownloader is free, but with RealDownloader Plus, downloaded videos can be transferred to a wide variety of devices, including iPhones, Androids, and more.