This Java applet combines both table (grid) view and tree view. So you can hierarchically organize your data and still have multiple columns to display not only node name, but also some properties of the item. Applet can load its content from XML, allows editing of cells content as a text field (like in Excel), put checkboxes, combo boxes, hyperlinks, pictures and any other widgets in cells. Light-weight, high-performance, having clear and comfortable API, applet is highly useful for representation of data in commercial applications. Such features, as dynamical loading of items by opening of subnodes, gives possibility to satisfy client's requirements to display really huge amounts of data fetched from database. TreeTable supports JavaScript events, right-mouse menu, international symbols (like japanese).