The [dataviz.tools] site is an annotated and categorized catalog of good visualization tools.

> This site features a curated selection of data visualization tools meant to bridge the gap between programmers/statisticians and the general public by only highlighting free/freemium, responsive and relatively simple-to-learn technologies for displaying both basic and complex, multivariate datasets.

via [FlowingData]

[dataviz.tools]: http://dataviz.tools "a curated guide to the best tools, resources and technologies for data visualization"
[FlowingData]: http://flowingdata.com/2017/01/20/catalog-of-visualization-tools/ "Catalog of visualization tools"