Our team has made complete refactoring of components WebViewer, MobileViewer, and MvcViewer. As a result, we have completely updated the component to view reports - WebViewer. Now, this component is a universal full-featured tool for viewing reports. At the same time, the WebViewer component has a number of advantages over the older versions. Increased speed of report processing and improved with cache, optimized work with large reports (big reports). WebViewer is developed using HTML5 and CSS3 technologies and supported in any browser. Also, this component is adapted for mobile devices.