GreenSock is the de facto industry-standard JavaScript animation platform available today.
It’s a mature JavaScript library that has its roots in Flash-based animation. This means the guys behind GreenSock know web animation inside-out, the library has been around for a long time and is not going anywhere any time soon.
GSAP includes a comprehensive suite of tools, utilities, and plugins you can leverage to handle any web animation challenge you happen to face, from animating SVGs consistently across multiple browsers to coding complex animation sequences, dragging elements across the screen, splitting and scrambling text, and so much more.