Kubuntu, making your PC friendly Kubuntu is an operating system built by a worldwide community of developers, testers, supporters and translators. Kubuntu is a free, complete, and open-source alternative to Microsoft Windows and Mac OS X which contains everything you need to work, play, or share. Check out the Feature Tour if you would like to learn more! Kubuntu unites Ubuntu with KDE and the fabulous Plasma desktop, bringing you a full set of applications. The installation includes productivity, office, email, graphics, photography, and music applications ready to use at startup. Firefox, Kmail, LibreOffice, Gwenview are just a few installed and ready to use, with thousands more, available in just a click, from the Discover software centre. Built using the Qt toolkit, Kubuntu is fast, slick and beautiful. Kubuntu is mobile-ready, enabling easy integration between your PC desktop and phone or tablet. Simply use the Google Play store to install KDE Connect on your Android device and you can integrate your device with your desktop.