Some of the finest JS-CSS animation libraries around.
1. Three.js - at over 43K stars, this popular library is a great way to create 3D animations on the browser, using WebGL in an intuitive way. Providing <canvas>, <svg>, CSS3D and WebGL renderers, this library lets us create rich interactive experiences across devices and browsers. First introduced at April 2010, the library is still being developed by nearly 1,000 contributors.
2. Anime.js - at over 20K stars, Anime is a JavaScript animation library that works with CSS Properties, individual CSS transforms, SVG or any DOM attributes, and JavaScript Objects. This library lets you chain multiple animation properties, synchronize multiple instances together, create timelines and more.
3. Mo.js - at 14K stars, this library is a motion graphics toolbelt for the web, with simple declarative APIs, cross-device compatibility and over 1500 unit-tests. You can move things around the DOME or SVG DOME or create unique mo.js objects. Although documentation is somewhat scarce, examples are plentiful and here’s an introduction at CSS tricks.
4. Velocity - at 15K stars, Velocity is a fast Javascript animation engine with the same API as jQuery’s $.animate(). It features color animation, transforms, loops, easings, SVG support, and scrolling. Here’s a breakdown of Velocity’s high performance engine, and here’s an intro to SVG animation using the library.
5. Popmotion - at 14K stars, this functional and reactive animation library weighs only 11kb. It allows developers to create animations and interactions from actions, which are streams of values that can be started and stopped, and created with CSS, SVG, React, three.js and any API that accepts a number as an input.
6. Vivus - at over 10K stars, Vivus is a zero-dependencies JavaScript class that lets you animate SVGs, giving them the appearance of being drawn. You can use one of many available animations, or create custom script to draw you SVG. Check out Vivus-instant to get a live example, hands-on.
7. GreenSock JS - GSAP is a JavaScript library for creating high-performance, zero dependencies, cross-browser animations which claims to be used in over 4 million websites. GSAP is flexible and works with React, Vue, Angular and vanilla JS. GSDevtools can also help to debug animations built using GSAP.
8. Scroll Reveal - With 15K stars and zero dependencies, this library provides easy scroll animations for web and mobile browsers, to reveal things on-scroll in an animated way. It supports multiple neat types of effects, and even lets you define animations using natural language.
9. Hover (CSS) - at 20K stars, Hover provides a collection of CSS3 powered hover effects to be applied to links, buttons, logos, SVG, featured images and more, available in CSS, Sass, and LESS. You can copy and paste the effect you’d like to use in your own stylesheet or reference the stylesheet.
10. Kute.js - A fully fledged native JavaScript animation engine with essential features for cross-browser animations. The focus is code quality, flexibility, performance and size (core engine is 17k min and 5.5k gzipped)- here’s a demo. The library is also extendable so you can add your own features.
11. Typed.js - This 6K stars library basically lets you create typing animations for strings at selected speeds. You can also place an HTML div on the page and read from it to allow access for search engines and users with JavaScript disabled. Used by Slack and others, this library is both popular and surprisingly useful.