jQuery jqGrid

jqGrid is an Ajax-enabled JavaScript control that provides solutions for representing and manipulating tabular data on the web.

jQuery Tabelizer

jQuery plugin to provide multi level grouping indicators for tables.

Group and select checkboxes.

jQuery plugin for Grouping and selected checkboxes whilst pressing a key

jQuery jbPivot

A simple pivot table jQuery widget

expandCollapse

A Light weight plugin to expand collapse HTML table also works on top of jqGrid.