Photon : UI toolkit for building desktop apps with Electron.
Leaflet : A Modern, Lightweight Open-Source JavaScript Library for Interactive Maps
Anime.js : Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
It works with CSS properties, SVG, DOM ...
darken : Easy control over your dark mode in a web environment
Wave.js : Audio visualizer library for javascript. Create dynamic animations that react to an audio file or audio stream.
The Closure Compiler, Library, Templates, and Stylesheets help developers create powerful and efficient JavaScript.