DHTMLX offers a complete set of ready-to-use JavaScript UI components for building feature rich web interfaces. The library includes the most required types of UI components: grid, treegrid, treeview, combobox, tabbar, menu, windows, calendar, layout, and more. All the components are written in pure JavaScript and compatible with all major web browsers: IE, FF, Opera, Safari, Chrome. The DHTMLX components support the main types of functionality required for development of modern web apps: drag-and-drop, inline editing, clipboard operations, Ajax support, 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, etc. All the components are pure client-side and can work with any server-side technology (ASP, .NET, PHP, JSP, Ruby, ColdFusion, etc.). To simplify client-server communication, DHTMLX offers dhtmlxConnectors, a set of special adapters for some of these technologies. These adapters help developers integrate DHTMLX components with the backend logic. The DHTMLX library is available under both GNU GPL (Standard Edition) and Commercial License (PRO Edition, $466).