Rough Charts is described as 'Rouch Charts is a responsive, composable React charting library with a hand-drawn style. Features - It's responsive' and is an app in the Development category. There are three alternatives to Rough Charts for Self-Hosted solutions. The best alternative is Chart.xkcd, which is both free and Open Source. Other great apps like Rough Charts are Rough.js (Free, Open Source) and roughViz (Free, Open Source).
Rough.js is a light weight (~8k), Canvas based library that lets you draw in a sketchy, hand-drawn-like, style. The library defines primitives to draw lines, curves, arcs, polygons, circles, and ellipses. It also supports drawing SVG paths.