I found this great curated guide to a set of tools, resources and technologies for data visualisation. https://dataviz.tools
The site features a curated selection of data visualisation 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. Thanks to Carl Lewis.
The list of tools is also in a Google Spreadsheet here.