Did you ever want to develop cross-platform application from one single code base? Are you afraid to get worse performance than with native code? Flutter may help you! Flutter is an open-source cross platform framework which allows you to create native applications. As is does not use JavaScript it won't require a hole WebView in background. Due to this and the incredible easy syntax it's one most advanced frameworks for applications running on mobile devices, in the web and on desktops. In this talk, I will introduce the basics of Flutter, what's different to other frameworks and some details about its structure.