Lottie.js
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.
matrix3d()
Animate an HTML element using 3D transformations - for example, creating a cube and spinning it around when hovered.
brightness()
Changes the "brightness" of an image using CSS, and is animatable. Can mimic the effect of light increasing or turning on with the right image. Check out the demo!
hue-rotate()
Rotates the hue of an element and its contents, and can be animated.
CSS Animation
The animation shorthand CSS property applies an animation between styles.
EffectTiming
Control how animations will play on the fly or in response to other events, including direction, duration, and delay.
WebGL: 2D and 3D graphics for the web
Render high-performance interactive 3D and 2D graphics within any compatible web browser without the use of plug-ins.
Easel.js
A JavaScript library that makes working with the HTML5 Canvas element easy. Useful for creating games, generative art, and other highly graphical experiences.