Google Charts - Interactive charts for browsers and mobile devices.
Excel Dashboard School - Free Excel add-ins and tools on Excel Dashboard School. Boost your work productivity and save your time! No trials, 100% power!
ZingChart - ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!
ASAP Utilities - ASAP Utilities is a powerful Excel add-in that fills the gaps in Excel.
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application
KPI Dashboard in Excel - Professional Management KPI Dashboard. Includes trend charts, past year/target comparisons, monthly & cumulative analysis in performance dashboard.