Tee.Data is a Javascript library for multi-dimensional queries and charting
Tee.Data forms part of the TeeChart for Javascript Charting library though it can be used apart. It offers lightweight javascript to create pivot-tables and, optionally, to chart the data. See the examples and documentation here for a closer look. To download and use Tee.Data's features follow the link to TeeChart for Javascript/HTML5 non-commercial & evaluation downloads.