Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
It works with CSS properties, SVG, DOM attributes and JavaScript Objects.

Audio visualizer library for javascript. Create dynamic animations that react to an audio file or audio stream.

Lottie is a library for Android, iOS, Web, and Windows that parses Adobe After Effects animations exported as json with Bodymovin and renders them natively on mobile and on the web!

CSS Animation Library for eccentric web developers.

Wick is a free browser-based toolkit for creating small interactive things for the Internet. With Wick, you can create games, animations, and everything in between. Your creations can run on any device with a web browser - that means mobile too. And since Wick lives in the browser, you don't have to download any extra software to use it!

Wick is a hybrid of an animation tool and a coding IDE, heavily inspired by similar tools such as Flash, HyperCard, and Scratch. It was developed in response to a growing need for such a tool for the modern web. You can read more about the creation of Wick here.

Animate On Scroll Library.
Small library to animate elements on your page as you scroll.

Animate.css is a bunch of cool, fun, and cross-browser animations for you to use in your projects.

Processing.js is the sister project of the popular Processing visual programming language, designed for the web. Processing.js makes your data visualizations, digital art, interactive animations, educational graphs, video games, etc. work using web standards and without any plug-ins.