These free dashboard software usually offer fewer data source support than the commercial products, but Exel support is pretty well ubiquitous.
Bittle supports the creation of online dashboards specifically for the SME user. The free package restricts data storage and data sources, and comes with a standard graphics library (instead of a more advanced one). Bittle also supports report creation.
ClicData is a cloud based dashboard platform that successfully delivers an easy to use, drag and drop graphical interface, while providing the tools for power users to deliver high levels of sophistication. Business users are able to produce dashboards almost immediately, and as they become more familiar with the platform, so they can deliver dashboards that incorporate a wide range of charts and graphs, conditional output, pivot tables, calculations and many other features.
It is ideal for smaller businesses, but has also found enthusiastic uptake in larger firms as they become familiar with its power and flexibility. The good news for very small businesses and single users is the free version of ClicData. This essentially supports CSV and Excel data, and data refresh once a week.
InetSoft provide a free version of their excellent Style Scope platform. Style Scope Free Edition is a small-footprint server that delivers Web-based interactive Flash dashboards and visualizations that can be shared within an organization. The Java-based application can be installed on any Windows, Unix, or Mac desktop and can be connected to data in standard relational databases as well as spreadsheets.
Qlik Sense is a next-generation, self-service data visualization and analysis application that empowers business users to easily create personalized visualizations, reports and dashboards with drag-and-drop simplicity.