OpenUI5, a powerful web UI library has recently entered the Open Source world. As the developers, we want to introduce you to it and demonstrate how you can easily develop responsive web apps that run on and adapt to any current browser and device. You will get an overview of the unique feature set: responsiveness across all platforms along with declarative UIs, data binding with direct OData, JSON and XML support, Model-View-Controller concepts and 180 UI controls organized in different libraries. Business software maker SAP relies on OpenUI5 for mission-critical applications and you will learn how you profit from SAP’s investment by getting built-in support for 37 languages and 575 locales, accessibility, right-to-left support and more for free. We will outline our quality strategy, which includes automated screenshot comparisons, build-on-submit with compatibility validation – and a huge pile of actual touch devices. Being Open Source fans, the UI5 developers have used and integrated many OS libraries. Lean how jQuery, datajs, LESS, Handlebars, Crossroads, iScroll and others are used and how the Open Source enthusiasm has infected the SAP ecosystem and how it internally caused a welcome cultural change. Think this is going to be a typically dry enterprise software session? Think again! Come along and see a ton of different OpenUI5 apps, and some serious live coding!