Simple yet flexible JavaScript charting for designers & developers. Charts.js is one of the most beautiful open source charts library.

Kamran Ahmed has developed this light-weight, no-dependency, vanilla JavaScript engine to drive user's focus across the page.

Sal (Scroll Animation Library) is written with aim to provide performant and lightweight solution for animating elements on scroll. It's based on the Intersection Observer, which gives amazing performance in terms of checking the element's presence in viewport.