RoughViz is certainly one to look at in 2021, built upon d3.js version 5, brings very unique visualizations to your front end. The rendered charts are almost like crayon drawings, with rough borders and coloring, it actually really pleases the eye. The library is super-easy to work with utilizing array-based data sets and various options easily modified.
Notable Feature List
- Very unique, nothing else around like it
- Plenty of customizable options
- Built upon d3.js version 5