VoxLens

An open-source JavaScript plug-in developed at the University of Washington that improves the accessibility of online data visualizations for screen-reader users through a multimodal approach. VoxLens provides three interaction modes: a Question-and-Answer mode where users can verbally query specific data points, a Summary mode that provides an overview of the visualization and its contents, and a Sonification mode that maps data trends to a musical scale. The tool requires only a single line of code to integrate into web pages and supports complex visualizations including multi-series line graphs and geospatial maps, enabling screen-reader users to extract granular information that would otherwise be inaccessible through alternative text alone.