DHTMLX Ajax Toolkit combines the most widely used types of DHTML UI components: grid, treegrid, treeview, combobox, tabbar, menu, toolbar. All components are written in pure JavaScript and compatible with all main browsers: IE, Opera, FireFox, Safari. DHTMLX components support the main types of functionality required for development of modern Web applications: drag-n-drop (also available between different components, e.g. from Grid to Tree), in-line editing, clipboard operations, special techniques for handling large datasets, powerful script API, built-in client-to-server communications, wide range of client side events, XML/CSV/JSON support (while XML support is more advanced, JSON, as well as CSV, support is also available for most operations).